- Liriodendron tulipifera is the state tree of both Indiana and Tennessee. [source]
- Native American tribes used Liriodendron tulipifera for making canoes . Cherokee and Rappahannock tribes used bark of the roots as a bitter tonic and heart stimulant, and it was considered useful in healing fevers, rheumatism, and digestive disorders (D. E. Moerman 1986). [source]
- The largest known tree of Liriodendron tulipifera, 44.5 m in height with a trunk diameter of 3.02 m, is recorded from Bedford, Virginia (American Forestry Association 1994). [source]
- Tulip Trees produce large greenish tulip-like flowers with orange markings. Note the magnolia-like pistils and stamens in the flower. In the fall the hard center develops into seeds. The flowers, leaves and twigs are often found on the ground under the tree; for some reason squirrles nip the twigs off.
- Tulip Trees are valuable timber trees, because of their straight trunks reaching 200 feet.
- The Tulip Poplar is the State Tree of Tennessee.
- Tulip Trees produce large greenish tulip-like flowers with orange markings. Note the magnolia-like pistils and stamens in the flower. In the fall the hard center develops into seeds. The flowers, leaves and twigs are often found on the ground under the tree; for some reason squirrles nip the twigs off.
- Tulip Trees are valuable timber trees, because of their straight trunks reaching 200 feet.
- The Tulip Poplar is the State Tree of Tennessee.
Click on the language to view common names.
Common Names in English:
Tulip Magnolia, Canary Whitewood, Tulip Poplar, Tulip Tree, Tulip-Poplar, Tuliptree, Whitewood, Yellow Poplar, Yellow-Poplar
Common Names in French:
, deciduous or evergreen
. Leaves alternate, simple
; stipules early or tardily deciduous, at first surrounding stem, adnate
side of petiole
in Magnolia grandiflora ), often ochreate, leaving persistent
around node. Leaf blade
pinnately veined, unlobed (or evenly 2-10-lobed in Liriodendron ), margins
entire. Inflorescences terminal
, solitary flowers (often paired
in Magnolia ashei ), pedunculate
bracts 2 (Magnolia ) or 1 (Liriodendron ) . Flowers: perianth hypogynous, segments imbricate; tepals deciduous, 6-18, in 3 or more whorls of 3, ± similar or outer tepals sepaloid
, inner tepals petaloid
; stamens numerous
, hypogynous, free, spirally arranged
very short to 1/2 length
; anthers introrse
, or extrorse
, longitudinally dehiscent
with distal appendage
; pistils numerous, superior, spirally arranged on elongate
receptacle (torus), stalked
or sessile, free or ±concrescent, 1-locular; placentation marginal
, placenta 1; ovules 1-2; style 1, short and recurved (Magnolia ) or large and winglike (Liriodendron ) ; stigma 1, terminal or terminal decurrent (Magnolia ) or recurved (Liriodendron ) . Fruits conelike syncarps consisting of aggregates of coalescent
, woody follicles (follicetums, as in Magnolia ) or apocarps
consisting of aggregates of indehiscent samaras (samaracetums, as in Liriodendron ) . Seeds 1-2 per pistil, arillate
, endosperm oily (Magnolia ), or without aril, adherent
to dry endocarp ( Liriodendron ) .
Genera ca. 6(-12), species ca. 220 (2 genera, 9 species in the flora ) : mostly in Asia, the Pacific Islands, and the Western Hemisphere.
Magnoliaceae are pollinated by beetles.
Herbarium material of Magnolia is usually incomplete and inadequate for critical study. Collections should include material of the stipules, spathaceous bracts, a full complement of stamens, and all of the perianth segments to facilitate identification of Magnolia species.
, deciduous. Pith
. Leaves distinctly alternate, not in false terminal
whorl; stipules tardily deciduous on summer shoots
. Leaf blade
evenly (2-) 4-6(-10) -lobed, base
to shallowly cordate or truncate
, apex broadly truncate or notched
; surfaces abaxially glaucous, adaxially lustrous
. Flowers protogynous, appearing with the leaves; tepals (7-) 9, petaloid
recurved, greenish yellow with feathered orange band
near base, outermost tepals sepaloid
, green; stamens on short torus, tardily deciduous, whorled
. Samaras deciduous, indehiscent, in elongate
, dry cone. Seeds adherent
to dry endocarp. x
Species 2: North America, e Asia.
Species Liriodendron tulipifera
, single-trunked, to 45 m.
light gray, thick, deeply furrowed
, light green, elliptic
5-11.5 cm. Leaf blade
commonly with 2 shallow upper lobes
and 2 lateral
lobes at broadest part, or sometimes squarrose and
, (6.5-) 7.5-15(-23.5) × (8.5-) 12.5-18.5(-25.5)
cm; surfaces abaxially glaucous, adaxially bright green. Flowers
bract 1, brownish, notched
; tepals erect
, outermost tepals green to
glaucous; stamens 20-50, 40-50 mm; filaments
white; pistils 60-100.
Samaracetums 4.5-8.5 cm, with numerous
(1-) 2-seeded, imbricate samaras
3-5.5 × 0.5-1 cm, falling separately at maturity; receptacles
with basal pistil persistent. Seeds (1-) 2. 2 n =38. Flowering spring
Leaf and flower color variation are widespread in this species, but the variation is continuous and without any discernible taxonomic significance. [source]
Liriodendron tulipifera is widely cultivated; a few cultivars have been introduced to horticulture , and the hybrid L. tulipifera × L. chinense is known. [source]
ID Features: Tulip-shaped leaves. Yellow-green tulip-like flowers. Cone-like aggregate fruits. Lightly striped gray bark. Massive size of tree. Glabrous stems. Buds greenish and "mitten-shaped". "telescoping" stems due to encircling stipular line.
Habit: A large, deciduous tree . Ovate to pyramidal when young; older trees become more irregular. Trunks of old trees are massive, and often branchless for quite a distance up. • Growth Form: Single Stem • Shape and Orientation: Erect
Flowers: 2" to 3" long, tulip-shaped, upright blossoms . Borne singly at branch ends. Blooms late may through mid-June. Petals are yellow-green. The inside of the corolla base is orange. Unfortunately most flowers are borne in the higher reaches of the plant. and are not easily observed. • Bloom Period: Mid Spring • Flower Color: Yellow • Flower Conspicuous: Tulip-shaped, greenish-yellow and orange flowers
Seeds: Seed per Pound: 14000 • Seed Spread Rate: Slow • Seedling Vigor: Medium • Fruit: A cone-shaped aggregate fruit. Change from green to tan-brown in October. Persist in the winter. • Fruit/Seed Abundance: High • Fruit/Seed Color: Brown • Fruit/Seed Conspicuous: Yes • Cold Stratification Required: Yes
Foliage: blue-tinged • Foliage Shape: Triangular • Foliage Color: Green • Normal foliage color: Blue-green • Underside foliage: Blue-green • Juvenile foliage: Blue-green • Mature foliage: Blue-green • New foliage: Blue-green • Spring foliage: Blue-green • Summer foliage: Alternate deciduous leaves. Leaves have a "tulip" shape . Leaves are 5" to 8" long and wide. Color is bright green. Long petioles of 3" to 4". Emerging leaves are folded. • Fall foliage: Can be very showy. Golden yellow to clear yellow. • Foliage Porosity Summer: Dense • Foliage Porosity Winter: Porous • Foliage Texture: Medium • Fall Conspicuous: Yes • Leaf Retention: No
Active Growth Period: Spring and Summer • Growth Rate: Fast Growing • Mature Height (feet): 120.0 • Maximum Height at 20 Years (feet): 50 • Size: Fast grower to 90 ft . or more tall and 30 ft. or more wide. Large trees to 150' or more are common. • Vegetative Spread Rate: None • Lifespan: Lifespan
Landscape Uses: Lawn tree . Shade tree. Needs ample space due to very large size. Pyramidal shape in youth is impressive in large groups. Does not get eaten by gypsy moth. • Liabilities: Extremely large size not for smaller sites. Intolerant of hot, dry sites. Aphids and associated sooty mold. Tulip tree scale. Flowers borne high in tree; do not consider as a prominent ornamental . feature. Leaf spot and early partial leaf drop. • Care: Follow a regular watering schedule during the first growing season to establish a deep, extensive root system . Watering can be reduced after establishment. Feed with a general purpose fertilizer before new growth begins in spring .
Typically found at an altitude of 0 to 1,092 meters (0 to 3,583 feet).
Duration: Perennial • Coppice Potential: Yes • Progagated by Bulbs: No • Propagated by Bare Root: Yes • Propagated by Container: Yes • Propagated by Corms: No • Propagated by Cuttings: No • Propagated by Seed: Yes • Propagated by Sod: No • Propagated by Sprigs: No • Propagated by Tubers: No • Fruit/Seed Period Begin: Summer • Fruit/Seed Period End: Summer • Fruit/Seed Persistence: No
Culture: Has a fleshy , poorly-branched root system . Prefers a deep, moist, fertile soil. Slightly acidic soil is best, but not required. Avoid very dry, hot sites. Full sun .
Soil: Adapted to Medium Textured: Adapted to Medium Textured Soils • Adapted to Coarse Textured Soils: Yes • Anaerobic Tolerance: None • Salinity Tolerance: Low • CaCO3 Tolerance: Low • Minimum pH: 4.5 • Maximum pH: 6.5 • Fertility Requirement: High
Sunlight: Sun Exposure: Full sun • Shade Tolerance: Intolerant
Moisture: Drought Tolerance: Medium • Minimum Precipitation: 30 • Maximum Precipitation: 80 • Moisture Use: Medium • Water Requirements: Water regularly, when top 3 in. of soil is dry.
Temperature: Minimum Temperature (F): -18 • Minimum Frost Free Days: 150 • Heat Zones: High: 9 (>120 to 150 days) Low:2 (1 to 7 days) (map) • Cold Hardiness: 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b (map)
- Whittaker & Margulis,1978
- Haeckel, 1866
- Cavalier-Smith, 1981
- Sinnott, 1935 ex Cavalier-Smith, 1998
- Vascular Plants
- Kenrick & Crane, 1997
- Brongniart, 1843
- Novák ex Takhtajan, 1967
- Takhtajan, 1967
- Bromhead, 1838
- Family: Magnoliaceae () - A.L. de Jussieu, 1789, nom. cons. - Magnolia Family
- Order: Magnoliales () - Bromhead, 1838
- Superorder: Magnolianae () - Takhtajan, 1967
- Subclass: Magnoliidae () - Novák ex Takhtajan, 1967
- Class: Spermatopsida () - Brongniart, 1843
- Infraphylum: Radiatopses () - Kenrick & Crane, 1997
- Subphylum: Euphyllophytina ()
- Phylum: Tracheophyta () - Sinnott, 1935 ex Cavalier-Smith, 1998 - Vascular Plants
- Subkingdom: Viridaeplantae () - Cavalier-Smith, 1981
- Kingdom: Plantae () - Haeckel, 1866 - Plants
Liriodendron fastigiatum Dippel • Liriodendron heterophyllum K. Koch • Liriodendron integrifolium Steud. • Liriodendron obtusilobum K. Koch • Liriodendron procerum Salisb. • Liriodendron truncatifolium Stokes • Liriodendron tulipifera var. acutiloba Michx. • Liriodendron tulipifera var. obtusiloba Michx. • Tulipifera liriodendrum Mill.
Publishing author : St .-Lag. Publication : Ann. Soc. Bot. Lyon vii. (1880) 129
Members of the genus Liriodendron
ZipcodeZoo has pages for 6 species, subspecies, varieties, forms, and cultivars in this genus:
L. chinense (Chinese Tulip Poplar) · L. tulipfera (Tulip Poplar) · L. tulipfera'Ardis' (Ardis Tulip Tree) · L. tulipifera (Tulip Magnolia) · L. tulipifera 'Aureomarginatum' (Tulip Poplar) · L. Tulipifera 'Mediopictum' (Tulip Tree)
- Search for Pictures: images.google.com
- Search for Scholarly Articles: Google Scholar
- Search using Scientific Name and Vernacular Names: All the Web | AltaVista Canada | AltaVista | Excite | Google | HotBot | Lycos
- Search using Specialized Databases: GenBank | Medline | Scirus | CISTI/CAL | Agricola Periodicals | Agricola Books
- ... The spring of the year, by Dallas Lore Sharp. .. illustrated by Robert Bruce Horsfall. Boston, Houghton Mifflin company[c1912] url p. 145.
- A biological survey of the sand dune region on the south shore of Saginaw Bay, Michigan. Prepared under the direction of Alexander G. Ruthven. Lansing, Mich.: Wynkoop, Hallenbeck, Crawford co., state printers, 1911. url p. 59.
- A botanical survey of the Sugar Grove region / by Robert F. Griggs. Columbus: Ohio State University, 1914. url p. 273, p. 315.
- A bud and twig key to the more important broadleaf deciduous trees in the United States, by O. L. Sponsler. Ann Arbor, Mich., G. Wahr, 1916. url p. 12.
- A classification of the larvae and puparia of the Syrphidae of Illinois, exclusive of aquatic forms. Urbana, The University of Illinois press, 1938. url p. 81.
- A comparison of small mammals of the deciduous forest and old field habitats of Sweet Briar, Virginia / by Catherine E. Harold. 1979. url .
- A dictionary of American plant names / compiled by Willard N. Clute. Joliet, Ill.: W.N. Clute, 1923. url p. 115.
- A dictionary of the flowering plants and ferns, by J. C. Willis. CambridgeThe University Press, 1919 url p. 388.
- A faunal investigation of Long Point and vicinity, Norfolk County, Ontario / [Toronto: Royal Ontario Museum of Zoology], 1931. url p. 122.
- A first report on the relations between climates and crops. By Cleveland Abbe. Washington [D.C.]: Govt. Print. Off., 1905. url p. 203.
- A general introduction to forestry in the United States, with special reference to recent forest conservation policies, by Nelson Courtlandt Brown. New York, Chapman & Hall, limited, 1935. url p. 289.
- A guide to the identification of our more useful timbers, being a manual for the use of the students of forestry. CambridgeUniversity Press1920 url p. 3.
- A manual of bee husbandry. Trenton, N. J., 1922. url , .
- A manual of forestry. LondonBradbury, Agnew1906-25 url p. 185.
- A manual of organic materia medica and pharmacognosy; an introduction to the study of the vegetable kingdom and the vegetable and animal drugs (with syllabus of inorganic remedial agents) comprising the botanical and physical characteristics, source, con Philadelphia, Blakiston url p. 176, p. 594, p. xiv.
- A manual of the timbers of the world: their characteristics and uses: to which is appended an account by S. Fitzgerald of the artificial seasoning of timber. London: Macmillan, 1920. url , , , , , .
- A montane rain-forest; a contribution to the physiological plant geography of Jamaica, Washington, D. C., Carnegie Institution of Washington, 1914. url .
- A partial list of plants available for various uses in general landscape planting, comp. by Albert D. Taylor. Cleveland, A.D. Taylor, c1916 url p. 34, p. 34, p. 41, p. 41.
- A survey of beekeeping in North Carolina. Washington, Govt. Print. Off., 1916 url .
- A survey of diseases and defects in Connecticut forests / [New Haven]: Connecticut Agricultural Experiment Station, 1938. url p. 558.
- A survey of natural areas in Tyrrell County, North Carolina: for The North Carolina Natural Heritage Program, Coastal Natural Area Inventory Project / Raleigh: North Carolina Coastal Energy Impact Program, Office of Coastal Management, North Carolina Dept. of Natural Resources and Community Development, [1982?] url p. 8.
- A text-book of botany and pharmacognosy, intended for the use of students of pharmacy, as a reference book for pharmacists, and as a handbook for food and drug analysts. London, Lippincott[c1907] url , .
- A text-book of mycology and plant pathology / Philadelphia: P. Blakiston's Son & Co.c1917. url , .
- A thousand answers to beekeeping questions / Hamilton, Ill.: American Bee Journal, 1917. url .
- A university text-book of botany. New York, Macmillan, 1910. url p. 428.
- A working plan for forest lands in Berkeley County, South Carolina. By Charles S. Chapman. Washington, Gov't print. off., 1905. url p. 46.
- About trees, shrubs, and climbing plants for South Africa; concise hints on the making of farm plantations, shrubberies. .. Maritzburg, 1919. url , p. 87.
- Age and area; a study in geographical distribution and origin of species, by J. C. Willis, with chapters by Hugo de Vries, H. B. Guppy, Mrs. E. M. Reid, James Small. Cambridge [Eng.]The University Press, 1922. url p. 142, p. 143.
- Agricultural index. New York, H. W. Wilson Co. url p. 581, p. 676.
- American forest trees, by Henry H. Gibson; ed. by Hu Maxwell. Chicago, Hardwood record, 1913. url , p. 481.
- American honey plants; together with those which are of special value to the beekeeper as sources of pollen. Hamilton, Ill., American Bee Journal, 1920. url p. 261, p. 99.
- An illustrated dictionary of medicine, biology and allied sciences. .. by George M. Gould. 5th ed., with additions and corrections. PhiladelphiaP. Blakiston's Son1907 url p. 696.
- An illustrated encyclopaedia of gardening, by Walter P. Wright London, J. M. Dent & sons, ltd.; url p. 224, p. 278, p. 308.
- An introduction to the study of fossils (plants and animals) by Hervey Woodburn Shimer. .. New York, The Macmillan Company, 1914. url p. 80.
- An outline of plant geography, by Douglas Houghton Campbell. New York, The Macmillan company, 1926. url p. 382.
- Animal Ecology. Englewood Cliffs, N.J., Prentice-Hall, 1961. url p. 466.
- Annual report of the Director to the Board of Trustees for the year. .. / Field Museum of Natural History Chicago, U.S.A.: Field Museum of Natural History, 1907-1943. url p. 293.
- Annual report of the Massachusetts Agricultural Experiment Station. [S.l.: s.n.], 1907-1925. url p. 133.
- Asiatic herpetological research. 4 1992 Berkeley, Calif.: Asiatic Herpetological Research Society; c1990- url fig. 1, page 77.
- Atlas of the rare vascular plants of Ontario / Ottawa: Botany Division, National Museum of Natural Sciences = Division de la botanique, Musée national des sciences naturelles, 1982-1987. url , .
- Bartonia;proceedings of the Philadelphia botanical club. .. 62 2004 Philadelphia, Philadelphia Botanical Club, Academy of Natural Sciences. url p. 119, p. 140, p. 148, p. 2, p. 26, p. 27, p. 33, p. 4, p. 41, p. 42, p. 43, p. 52, p. 53, p. 57, p. 58, p. 67, p. 7, p. 73, p. 76, p. 79, p. 8, p. 8, p. 9, p. 96.
- Beautiful gardens: how to make and maintain them / by Walter P. Wright. -- London; Cassell and company, 1909. url p. 99.
- Beekeeping in the South; a handbook on seasons, methods and honey flora of the fifteen southern states, Hamilton, Ill., American bee journal[c1920] url .
- Bees and honey; Chicago, Ill., The American bee journal, 1911. url p. 101.
- Beeton's Dictionary of everyday gardening. .. to which is added a monthly calendar of garden work throughout the year. London, Ward, Lock, 1909. url p. 508.
- Bergen's botany, key and flora. Northern and central states ed. By Joseph Y. Bergen. Boston, Ginn,  url p. 93.
- Biltmore Nursery, Biltmorse, N.C. [North Carolina?: The Nursery?], c1912 url p. 30.
- Biological effects of radiation; mechanism and measurement of radiation, applications in biology, photochemical reactions, effects of radiant energy on organisms and organic products. Edited by Benjamin M. Duggar. With the cooperation of Janet Howell Clark, Kenneth S. Cole, Farrington Daniels [and others] New York andMcGraw-Hill Book Co., 1936. url p. 691, p. 994.
- Biosphere Reserves, Compilation 5, October 1990: programme on man and the biosphere (MAB) IUCN url p. 158, p. 161, p. 164, p. 167, p. 34.
- Book of garden plans, Garden City, N. Y., Doubleday, Page & company, 1916. url , .
- Botanical microtechnique. Ames, Iowa State College Press url p. 127.
- Botany, developmental and descriptive. Philadelphia, Lea, 1922. url p. 160, p. 224.
- British ferns and their varieties, London, E. P. Dutton and Co. url .
- Brooklyn Botanic Garden record. 12 1923 [Brooklyn]: Brooklyn Botanic Garden, 1912-44. url p. 117, p. 16.
- Bulletin - Massachusetts Agricultural Experiment Station. Amherst, : Massachusetts Agricultural Experiment Station, 1907-1974. url p. 75.
- Bulletin / Illinois Natural History Survey. Urbana, State of Illinois, Dept. of Registration and Education, Natural History Survey Division, 1918-1985. url , p. 182, p. 402, p. 461, p. 543.
- Bulletin / Ohio Biological Survey. Columbus, Ohio: Ohio State University, 1913- url p. 163, p. 301, p. 315, p. 455.
- Bulletin / Ontario Department of Agriculture. Toronto: The Dept., [1905- url p. 4.
- Bulletin / U.S. Department of Agriculture, Bureau of Entomology. Washington: G.P.O., 1904-1916. url p. 40.
- Bulletin Harrisburg, Pa.: The Department, - url , .
- Bulletin of the Charleston Museum. [Charleston, S.C.: the Museum], 1907-1922. url , p. 59.
- Bulletin of the U.S. Department of Agriculture. [Washington, D.C.?]: Supt. of Docs., G.P.O., 1913-1923. url , , , , p. 10, p. 11, p. 11, p. 11, p. 13, p. 15, p. 16, p. 23, p. 23, p. 25, p. 25, p. 26, p. 28, p. 30, p. 38, p. 39, p. 39, p. 44, p. 45, p. 49, p. 6, p. 68, p. 7, p. 77, p. 8, p. 9.
- California garden-flowers, shrubs, trees and vines: being mainly suggestions for working amateurs / by E.J. Wickson. San Francisco: Pacific Rural Press, 1915, [c1914]. url p. 249.
- Canadian forestry journal. [Ottawa]: Canadian Forestry Association. url p. 135.
- Carbon and the biosphere; proceedings of the 24th Brookhaven symposium in biology, Upton, N.Y., May 16-18, 1972. Editors: George M. Woodwell [and] Erene V. Pecan. [Washington]Technical Information Center, U.S. Atomic Energy Commission; [available from National Technical Information Service, Springfield, Va.]1973. url p. 347, p. 354, p. 356, p. 364.
- Carotenoids, by Paul Karrer and Ernst Jucker. Translated and rev. by Ernest A. Braude. New York, Elsevier Pub. Co., 1950. url p. 369, p. 71.
- Catalog of Ohio vascular plants, arranged according to the phyletic classification; with notes on the geographical distribution in the state, based mainly on specimens in the State Herbarium, Botanical Laboratory, the Ohio State Univ Columbus, The Ohio State University, 1914. url .
- Catalog of Ohio vascular plants: arranged according to the phyletic classification: with notes on the geographical distribution in the state, based mainly on specimens in the State Herbarium, Botanical Laboratory, the Ohio State Uni by John H. Schaffner. Columbus: Ohio State University, 1914. url p. 163.
- Catalogue of scientific papers (1800-1900) Comp. by the Royal society of London. Cambridge, C. J. Clay and sons, 1867-1902; url p. 48, p. 482, p. 783, p. 928.
- Catalogue of scientific papers, 1800-1900. Compiled by the Royal Society of London. London, C.J. Clay and Sons, 1867-1902 [etc.] Cambridge, Cambridge University Press, 1914-25. url p. 482, p. 783, p. 928.
- Catalogue of the library of the Arnold Arboretum of Harvard University / compiled under the direction of Charles Sprague Sargent by Ethelyn Maria Tucker. Cambridge: Printed at the Cosmos Press, 1914-1933. url p. 226, p. 282, p. 633.
- Cellulose: an outline of the chemistry of the structural elements of plants, with reference to their natural history and industrial uses. By Cross & Bevan (C. F. Cross, E. J. Bevan, and C. Beadle). New impression with a supplement. London, Longmans, Green, and co., 1918. url p. 183.
- Check-list of the species of fishes known from the Philippine Archipelago, Manila, Bureau of printing, 1910. url p. 282.
- Chestnut blight. 1906-1960. url , .
- Children's gardens for school and home: a manual of cooperative gardening / by Louise Klein Miller. New York: Appleton, 1904. url p. 221.
- Circular / United States Department of Agriculture, Bureau of Entomology. Washington, D.C.: The Bureau, 1904-1913. url p. 4, p. 6.
- Cold weather and glaze damage to forest plantations in southern Illinois / by W.R. Boggess and F.W. McMillan. Urbana, Ill.: University of Illinois Agricultural Experiment Station, 1954. url p. 21.
- College botany, structure, physiology and economics of plants. Philadelphia, Lippincott, 1920. url p. 338.
- College botany; structure, physiology and economics of plants, London, J. B. Lippincott Company[c1920] url .
- Colour in my garden, by Louise Beebe Wilder. Illustrated in colour, by Anna Winegar. Garden City, N.Y., Doubleday, Page, 1918. url p. 362.
- Commercial gardening, a practical & scientific treatise for market gardeners, market growers, fruit, flower & vegetable growers, nurserymen, etc. By many practical specialists under the editorship of John Weathers. London, The Gresham publishing company, 1913. url , p. 29.
- Common forest trees of North Carolina: how to know them; a pocket manual / by J. S. Holmes, State Forester. Chapel Hill, N.C.: North Carolina Geological and Economic Survey, 1923. url p. 55.
- Comprehensive plan for the Illinois Nature Preserves System. Rockford, Ill.: Illinois Nature Preserves Commission, 1972-1973. url p. 32.
- Contributions from the Botanical Laboratory and the Morris Arboretum of the University of Pennsylvania. Philadelphia: [s.n., url , , .
- Contributions from the Osborn Botanical Laboratory. [New Haven?]Osborn Botanical Laboratory, Yale University, url p. 262.
- Contributions from the University of Michigan Herbarium. 9 1972 Ann Arbor: University Herbarium, University of Michigan, 1939- url p. 592.
- Cooperative economic insect report. Hyattsville, MD. [etc.]Plant Protection and Quarantine Programs Animal and Plant Health Service. url p. 701.
- Course on care of trees, by G.H. Allen. .. Boston, Mass., Naturebureau[c1908] url p. 16.
- Danish fungi as represented in the herbarium of E. Rostrup / revised by J. Lind. Copenhagen: Gyldendalske boghandel, 1913. url p. 427, p. 434, p. 482.
- Department circular. Boston, Mass., 1918-1920. url p. 14.
- Description and itinerary of agricultural special train. Twofold value of the honeybee. Do bees injure fruit? Combining beekeeping and farming. Report of State inspector of apiaries. Brood diseases of bees. Some nectar and pollen-bearing plants of Tennessee Nashville, Tenn., 1914 url .
- Destructive insects affecting Ohio shade and forest trees / J. S. Houser. Wooster, Ohio: Experiment Station, 1918 url .
- Dictionary of the common names of plants with list of foreign plants cultivated in the open / by Rudolf Marloth. Cape Town: Specialty Press of South Africa, 1917. url p. 162.
- Diseases of deciduous forest trees / by Hermann von Schrenk and Perley Spaulding. Washington: G.P.O., 1909. url p. 11, p. 12, p. 56, p. 57, p. 80.
- Diseases of deciduous forest trees, Washington, D.C.Govt. Print. Off.1909 url p. 11, p. 56, p. 57, p. 80.
- Ecological investigations upon the germination and early growth of forest trees. Lincoln, Neb.1916. url , , p. 24.
- Elements of botany. Boston, Ginn[c1904, pref. 1906] url .
- Endothia parasitica and related species. Washington, Govt. print. off., 1917. url p. 61, p. 67, p. 68.
- Entomological news. [Philadelphia]American Entomological Society, 1925- url p. 217, p. 236, p. 255, p. 34, p. 35, p. 65, p. 92.
- Erigenia: journal of the Illinois Native Plant Society. Carbondale, Ill.: The Society, 1982- url p. 14, p. 16, p. 17, p. 29, p. 31, p. 33, p. 5, p. 80, p. 83.
- Essentials of botany. Boston, Ginn[c1908] url .
- FWS/0BS. [Washington]Fish and Wildlife Service, U.S. Dept. of the Interior. url p. 21, p. 92.
- Familiar trees and their leaves, described and illustrated by F. Schuyler Mathews, with illus. in colors and over two hundred drawings by the author, and an introd. by L.H. Bailey. Ed. in colors. 1911 New YorkD. Appleton1911 url p. 326.
- Farm forestry / New York: J. Wiley & Sons, 1916. url .
- Farm forestry, a text book dealing with the wooded parts of southern farms and the problems growing out of them, for use in agricultural high schools and colleges, by Alfred Akerman. .. Athens, Ga. [Jackson, Ga., Progress print]1914. url p. 14.
- Farm forestry, by John Arden Ferguson. New York: J. Wiley & sons, inc.; [etc., etc.], 1916. url p. 96.
- Field manual of trees; including southern Canada and the northern United States to the southern boundary of Virginia, Kentucky, and Missouri, westward to the limits of the prairie, by John H. Schaffner. Columbus, Ohio: R.G. Adams, 1914. url p. 56.
- Final environmental impact statement: proposed estuarine sanctuary grant award to the state of New York for a Hudson River estuarine sanctuary / Albany, N.Y.: The Department,  url p. 47.
- Flora Malesiana. general editor, C.G.G.J. van Steenis. Djakarta: Noordhoff-Kolff, 1950- url p. 567, p. 567.
- Flora of Illinois, containing keys for identification of flowering plants and ferns. Notre Dame, Ind., University of Notre Dame Press, 1963. url p. 50.
- Flora of Vermont. List of ferns and seed plants growing without cultivation. Prepared by Vermont Botanical Club. Burlington, Vt., Free Press Print. Co., 1915. url p. 207, p. 232, p. 242.
- Flora of the Patuxent Research Refuge, Maryland / Washington, D.C.: U.S. Dept. of the Interior, Bureau of Biological Survey,  url p. 21, p. 4, p. 7.
- Flora of the Queen Charlotte Islands. [Ottawa: Queen's Printer], 1968-. url p. 53.
- Flowering trees & shrubs. LondonA.L. Humphreys1905 url , p. 114, p. 117, p. 62.
- Food habits of the grosbeaks. Washington, Govt. Print. Off., 1908. url .
- Forest conditions of Mississippi. [Jackson, Miss.]: Mississippi State Geological Survey, 1913. url p. 146, p. 147, p. 157.
- Forest of Port Rico; Washington, Govt. print. off., 1916. url p. 77.
- Forest planting in New Jersey / by Alfred Gaskill, state forester. Union Hill, N.J.: Dispatch Printing, 1913. url p. 12.
- Forest products, their manufacture and use: embracing the principal commercial features in the production, manufacture, and utilization of the most important forest products other than lumber, in the United States / New York: John Wiley & Sons, Inc., 1919. url .
- Forest protection in Canada, 1912-1914, by Clyde Leavitt. Toronto, 1913-1915. url p. 121, p. 121.
- Forest resources and industries of Illinois / by D.B. King and R.K. Winters. Urbana, [Ill.]: University of Illinois, Agricultural Experiment Station, 1952. url p. 95.
- Forest trees of the Pacific slope, by George B. Sudworth. WashingtonGovt. Print. Off.1908 url p. 238.
- Forest vegetation in Maryland / Baltimore: The Department, 1974. url p. 65.
- Forestry for profit, Trenton[Beers pres, inc.]1922. url .
- Forestry for the private owner... Syracuse, 1920. url p. 33.
- Forestry for woodmen / by C. O. Hanson. Oxford: At the Clarendon press, 1911. url p. 161.
- Forestry for woodmen, by C. O. Hanson. Oxford, Clarendon press, 1921. url p. 161.
- Forestry for woodmen. OxfordClarendon Press1921 url p. 161.
- Forestry in New England; a handbook of eastern forest management, by Ralph Chipman Hawley and Austin Foster Hawes. New York, J. Wiley, 1912. url p. 63.
- Forestry note / Urbana, Ill.: University of Illinois, Department of Forestry; 1948-1969. url p. 547.
- Forestry problems in the United States, by Thomas P. Ivy, B. A. Hendersonville, N.C., 1906. url p. 47.
- Forestry research report. Urbana, Ill., Agricultural Experiment Station, Dept. of Forestry, University of Illinois at Urbana-Champaign. url , , , , p. 2, p. 3.
- Forests and mankind, by Charles Lathrop Pack and Tom Gill. New York, The Macmillan Company, 1929. url p. 44.
- Forests, woods and trees in relation to hygiene. LondonConstable1919 url p. 58.
- Fundamentals of botany / by C. Stuart Gager. Philadelphia: P. Blakiston's Son & Co., c1916. url p. 29, p. 631, p. 74.
- Fundamentals of botany, Philadelphia, P. Blakiston's son & co., 1916. url .
- Fundamentals of botany. Philadelphia, Blakiston url p. 631, p. 74.
- Future forest trees or The importance of the German experiments in the introduction of North American trees. London, T. F. Unwin, 1905. url , .
- Future forest trees; or, The importance of the German experiments in the introduction of the North American trees. LondonT.F. Unwin1905 url p. 76.
- Garden guide, the amateur gardeners' handbook; how to plan, plant and maintain the home grounds, the suburban garden, the city lot. How to grow good vegetables and fruit. How to care for roses and other favorite flowers, hardy plants, trees, shrub New York, A. T. De La Mare company, inc.[c1917] url .
- Garden guide; the amateur gardeners' handbook. Profusely illustrated with over 275 teaching plans and diagrams and reproduced photographs, all made expressly for this standard text book. Edited by A. T. De La Mare. New York, A. T. De La Mare[c1920] url p. 60.
- Garden trees and shrubs illustrated in colour. By Walter P. Wright. London: Headley brothers,  url p. 231, p. 336, p. 82.
- Gardening in California, San Francisco, A. M. Robertson, 1914. url p. 28, p. 33.
- Gardening in California, landscape and flower, by John McLaren... San Francisco, A.M. Robertson, 1909. url p. 30, p. 30.
- Great Basin naturalist memoirs. 1982 [Provo, Utah]Brigham Young University, 1976-1992. url p. 1295, p. 768, p. 872.
- Guayule (Parthenium argentatum Gray), a rubber-plant of the Chihuahuan Desert, by Francis Ernest Lloyd. .. Washington, D.C.: Carnegie Institution of Washington, 1911. url p. 123, p. 123.
- Guide to the Economic Museum of the New York Botanical Garden. New York, 1921. url p. 230.
- Guidebook for the identification of woods used for ties and timbers, by Arthur Koehler, expert in wood identification, Forest products laboratory, Madison, Wisconsin. Washington: Govt. print. off., 1917. url p. 57.
- Hardy ornamental flowering trees and shrubs / by A. D. Webster. London: Smith, Elder, 1908. url p. 213, p. 218, p. 227.
- Henderson's Handbook of plants and general horticulture / By Peter Henderson. New York, P. Henderson & Co., 1910. url p. 494, p. 69.
- Historic American trees / New York: Frye, c1922. url .
- Historic American trees, by Katharine Stanley Nicholson. Photographs by the author and others. New York, Frye publishing company[c1922] url p. 64, p. 64.
- Historic American trees. New YorkFrye[c1922] url p. 64.
- Horticulture. Boston, Mass.: Horticulture Pub. Co., c1904- url p. 107, p. 253.
- Hortus Veitchii: a history of the rise and progress of the nurseries of Messrs. James Veitch and sons, together with an account of the botanical collectors and hybridists employed by them and a list of the most remark by James H. Veitch; with fifty illustrations. London: J. Veitch & sons, 1906. url p. 368.
- How to keep bees for profit, New York, The Macmillan company, 1918. url p. 299, p. 301, p. 322.
- Identification of the economic woods of the United States, including a discussion of the structural and physical properties of wood, New York, John Wiley & sons, inc.; [etc., etc.]1919. url , , , p. 182.
- Injurious and beneficial insects of California. / By E. O. Essig. Sacramento, California state printing office, 1915 url .
- Insect galls of Springfield, Massachusetts, and vicinity / by Fannie A. Stebbins. Springfield, Mass.: Springfield Museum of Natural History, 1909. url p. 134, p. 33.
- Insects affecting park and woodland trees / by Ephraim Porter Felt. Albany: New York State Education Dept., 1905-1906. url p. 72.
- Insects galls of Springfield, Massachusetts, and vicinity. Springfield, Mass., The Museum, 1909. url p. 134, p. 33.
- Introduction to plant geography and some related sciences. New York, McGraw-Hill, 1960. url p. 341, p. 611.
- Introduction to the plant-life of the Oxford district. London, Milford, 1922-25. url p. 101, p. 113.
- Irish gardening. Dublin: Pub. Office, 1906-1922 url p. 38.
- Journal of Hymenoptera research. Washington, D.C.: International Society of Hymenopterists, [1992- url p. 106, p. 117.
- Journal of agricultural research. Washington, U.S. Govt. Printing Office, 1913-1949.. url p. 213, p. 217, p. 508, p. 521, p. 523, p. 526.
- Journal of economic entomology. [College Park, Md., etc.]Entomological Society of America [etc.] url p. 329, p. 383, p. 482, p. 485, p. 574.
- Journal of forestry. Washington: Society of American Foresters, 1917- url p. 242, p. 244, p. 631.
- Journal of the Kentucky Academy of Science. Lexington, KY: The Academy, 1998- url p. 11, p. 128, p. 129, p. 161, p. 163, p. 182, p. 184, p. 184, p. 45, p. 47, p. 50, p. 54, p. 56, p. 57, p. 58, p. 61, p. 80, p. 81, p. 87.
- Journal of the Washington Academy of Sciences. Washington [etc., Washington Academy of Sciences] url p. 586, p. 588, p. 71, p. 80.
- Key and flora, northern and central states. Boston, Ginn,  url p. 93.
- Key and flora: northern and central states / Boston: Ginn, 1908. url .
- Lake Maxinkuckee. A physical and biological survey by Barton Warren Evermann and Howard Walton Clark. [Indianapolis]Dept. of Conservation, State of Indiana [Wm. B. Burford, printer]1920. url p. 305.
- Lake Maxinkuckee. a physical and biological survey by Barton Warren Evermann and Howard Walton Clark. [Indianapolis, Wm. B. Burford, printer]1920. url p. 305.
- Lake Maxinkuckee: a physical and biological survey / by Barton Warren Evermann and Howard Walton Clark. Indianapolis: Dept. of Conservation, 1920. url p. 305, p. 484.
- Landscape garden series, ed. by Ralph Rodney Root. Davenport, Ia.: The Garden Press,  url p. 12, p. 19, p. 30.
- Landscape gardening as applied to home decoration. By Samuel T. Maynard. .. New York, J. Wiley, 1915. url p. 163.
- Landscaping your home / Urbana: University of Illinois Press, c1975. url p. 225.
- Langstroth on the hive & honey bee, rev. by Dadant. Hamilton, Ill., Dadant, 1919. url p. 7.
- Langstroth on the hive and honey bee. Hamilton, Ill., Dadant[c1888] 1913. url .
- Langstroth on the hive and honey-bee. Hamilton, Ill.: Dadant, 1909. url .
- Leaf key to the trees of the northern states and Canada, and a botanical glossary. By Romeyn Beck Hough. Lowville, N. Y., The author, 1910. url p. 24.
- Leaf-mining insects / by James G. Needham, Stuart W. Frost, Beatrice H. Tothill. Baltimore: The Williams & Wilkins company, [c1928] url p. 312.
- Lectures on plant physiology / by Ludwig Jost; authorized English translation by R.J. Harvey Gibson. Oxford: Clarendon Press, 1907. url p. 38.
- Lectures on plant physiology / translated by R.J. Harvey Gibson. Oxford, Clarendon Press, 1907. url p. 38.
- Lectures on plant physiology. Authorized English translation by R.J. Harvey Gibson. Oxford, Clarendon Press, 1907. url p. 38.
- List of intercepted plant pests / United States Department of Agriculture, Plant Quarantine and Control Administration. [Washington, D.C.: U.S. G.P.O.], 1932- url p. 158.
- Loblolly, or North Carolina pine, Raleigh, Edwards & Broughton printing company, state printers and binders, 1915. url p. 13.
- Loblolly, or North Carolina pine, by W. W. Ashe. Raleigh, Edwards & Broughton Print. Co., 1915. url p. 13.
- Logging: the principles and general methods of operation in the United States / by Ralph Clement Bryant. London: Chapman & Hall, 1914, c1913. url p. 18.
- Logging; the principles and general methods of operation in the United States, by Ralph Clement Bryant. .. New York: J. Wiley & Sons; [etc., etc.], 1913. url p. 18.
- London parks and gardens, by the Honble Mrs. Evelyn Cecil (Alicia Amherst). .. With illustrations by Lady Victoria Manners. .. New York: Dutton, 1907. url p. 371.
- London trees. Being an account of the trees that succeed in London, with a descriptive account of each species and notes on their comparative value and cultivation. With guide to where the finest London trees may b by A. D. Webster. London, The Swarthmore Press, 1920. url p. 205, p. 209, p. 215.
- MAB Information System: Biosphere Reserves, Compilation 4, October 1986: Supplement September 1989 UNESCO url , , , .
- Manual of forestry for the Northeastern United States, being vol. 1 of Forestry in New England rev. by Ralph Chipman Hawley, and Austin Foster Hawes. New YorkWiley1918 url p. 47.
- Manual of plant diseases, Wilkes-Barré, Pa., The Record press, c1914-22 url p. 347, p. 354, p. 561.
- Manual of plant diseases, by Paul Sorauer. Wilkes-Barré, Pa.The Record Press, c1914-22 url p. 347, p. 561.
- Manures for fruit and other trees, a practical handbook for the gardener, horticulturist and student. London, Robert Sutton, 1908. url .
- Memoirs of the American Entomological Society. Philadelphia, American Entomological Society, 1916- url p. 16, p. 552, p. 775.
- Michigan trees: a handbook of the native and most important introduced species / by Charles Herbert Otis; with an introduction by George Plumer Burns. Ann Arbor: Regents of the University of Michigan, 1917 [c1915] url p. 137, p. 244.
- Michigan trees; a handbook of the native and most important introduced species. Ann Arbor, The Regents, [c1915] url , .
- Miscellaneous papers on the botany of Michigan, by C. K. Dodge. Prepared under the direction of Alexander G. Ruthven. Published as a part of the Annual report of the Board of Geological Survey for 1920. Lansing, Mich., Wynkoop Hallenbeck Crawford, State Printers, 1921. url p. 192.
- Miscellaneous studies in agriculture and biology. BerkeleyUniversity of California Press1919 url p. 179.
- Missouri Botanical Garden invites you to know our trees. 1990 [St. Louis]: Missouri Botanical Garden, 1990. url p. 48.
- Money in bees in Australasia. A practical treatise on the profitable management of the honey bee in Australasia, London [etc.]Whitcombe and Tombs, limited,  url .
- Morphology and taxonomy of fungi. Philadelphia, Blakiston, 1950. url p. 773.
- Morphology of gymnosperms, Chicago, University of Chicago Press[c1917] url .
- Morphology of the angiosperms. New York, McGraw-Hill, 1961. url p. 160.
- Museum bulletin / Albany, N.Y.: University of the State of New York, 1908-1916. url p. 91.
- National Arboretum contribution. Washington, D.C.: The Arboretum: 1953- url p. 21.
- Native trees of Canada / by B.R. Morton; with notes on nomenclature and utilization by R.G. Lewis. Ottawa: Dept. of the Interior, Forestry Branch, 1921. url p. 99.
- Native woody plants of the United States, their erosion-control and wildlife values. Washington, U. S. Govt. print. off., 1938. url , , , , , p. 157.
- Natural area inventory of Hyde County, North Carolina / [Raleigh]: North Carolina Coastal Energy Impact Program, Office of Coastal Management, North Carolina Department of Natural Resources and Community Development, 1982. url p. 151, p. 176, p. 183, p. 202.
- Natural area inventory of Pamlico County, North Carolina / [Raleigh]: North Carolina Coastal Energy Impact Program, Office of Coastal Management, North Carolina Department of Natural Resources and Community Development, 1982. url p. 19, p. 36, p. 37, p. 38, p. 39, p. 40, p. 41, p. 46, p. 9.
- Natural area inventory of Pender County, North Carolina / Raleigh: North Carolina Coastal Energy Impact Program, Office of Coastal Management, North Carolina Dept. of Natural Resources and Community Development, [1982?] url p. 129, p. 157, p. 21, p. 42, p. 59, p. 89.
- Natural area inventory of Washington County, North Carolina / [Raleigh]: North Carolina Coastal Energy Impact Program, Office of Coastal Management, North Carolina Department of Natural Resources and Community Development, 1982. url p. 143, p. 150, p. 160, p. 166, p. 17, p. 32, p. 39, p. 47, p. 56, p. 60, p. 65, p. 78, p. 90.
- Natural areas inventory of Carteret County, North Carolina: for the North Carolina Natural Heritage Program, Coastal Natural Area Inventory Project / [Raleigh]: N.C. Coastal Energy Impact Program, Office of Coastal Management, N.C. Dept. of Natural Resources and Community Development, . url p. 173, p. 206, p. 210, p. 234.
- Natural areas inventory, Gates County, North Carolina / Raleigh: North Carolina Coastal Energy Impact Program, Office of Coastal Management, North Carolina Dept. of Natural Resources and Community Development,  url p. 147, p. 173, p. 200, p. 26, p. 44.
- Naturalist's guide to the Americas, prepared by the Committee on the Preservation of Natural Conditions of the Ecological Society of America, with assistance from numerous organizations and individuals, assembled and edited by chairman, Baltimore, Williams & Wilkins, 1926. url p. 288, p. 288, p. 349, p. 379, p. 379, p. 389, p. 404, p. 404, p. 415, p. 465, p. 465, p. 485.
- New Jersey insects / [John Bernhard Smith] Trenton, N.J.?: s.n., 1909 url p. 732, p. 733.
- New York State Museum bulletin. Albany, N.Y.: University of the State of New York, 1916-1944. url p. 48, p. 49, p. 64, p. 67, p. 91.
- North American trees (exclusive of Mexico and tropical United States) A handbook designed for field use, with plates and distribution maps. Ames, Iowa State University Press url p. 235, p. 389.
- Novon a journal of botanical nomenclature from the Missouri Botanical Garden. 11 2001 St. Louis, MO: Missouri Botanical Garden, url p. 238, p. 378, p. 511, p. 99.
- Our forests and the timbers they contain. New Orleans, American printing co., ltd., 1904 url p. 18, p. 22.
- Our native trees and how to identify them; a popular study of their habits and their peculiarities, New York, C. Scribner's Sons, 1917. url , .
- Our trees, how to know them: photographs from nature by Arthur I. Emerson, with a guide to their recognition at any season of the year and notes on their characteristics, distribution, and culture. PhiladelphaiJ.B. Lippincott url p. 175, p. xix.
- Part I. The living flora of West Virginia, by C. F. Millspaugh. Part II. The fossil flora of West Virginia, by David White. Wheeling, Wheeling news litho. co., 1913 url p. 89, p. 97.
- Photosynthesis / by H. A. Spoehr. New York: The Chemical catalog company, inc., 1926. url p. 320.
- Photosynthesis and related processes, by Eugene I. Rabinowitch. .. New York, N.Y., Interscience Publishers, inc., 1945- url p. 357.
- Physiological plant anatomy, tr. by Montagu Drummond. London, MacMillan, 1914. url p. 771.
- Phytologia. Bronx Park, New York, H.A. Gleason and H.N. Moldenke, url p. 144, p. 243, p. 30, p. 34, p. 359, p. 365, p. 38, p. 473, p. 51, p. 54, p. 60, p. 62, p. 65, p. 67, p. 68, p. 69, p. 72, p. 74, p. 85, p. 91.
- Plant Form OXFORD UNIVERSITY PRESS url p. 119, p. 331, p. 52, p. 67.
- Plant anatomy from the standpoint of the development and functions of the tissues, and handbook of micro-technic, by William Chase Stevens. Philadelphia, P. Blakiston, 1910. url p. 188.
- Plant health care for woody ornamentals: a professional's guide to preventing and managing environmental stresses and pests / [Urbana, Ill.]: Cooperative Extension Service, College of Agricultural, Consumer and Environmental Sciences, University of Illinois at Urbana-Champaign, c1997. url p. 14, p. 192, p. 196, p. 217, p. 222, p. 97.
- Plant physiology; a textbook for colleges and universities, by Bernard S. Meyer. .. and Donald B. Anderson. .. New York, D. Van Nostrand Company, inc., 1939. url p. 157, p. 219.
- Plant physiology; authorized English translation by R. J. HarveyGibson; supplement incorporating the alterations of the 2d ed. of the German original. Oxford, Clarendon Press, 1913. url p. 38.
- Plants of Mississippi: a list of flowering plants and ferns / by E.N. Lowe. [Jackson, Miss.]: Mississippi State Geological Survey, 1921. url p. 145, p. 34, p. 36, p. 41, p. 44.
- Popular botany; the living plant from seed to fruit, by A.E. Knight and Edward Step. .. New York: H. Holt and company,  url p. 246, p. 246, p. 250, p. 274.
- Popular names of flowers, fruits, &c., as used in the county of Somerset and the adjacent parts of Devon, Dorset and Wilts. Yeovil, Western Gazette, 1922. url p. 161.
- Postilla. 1979 New Haven, Conn.: Peabody Museum of Natural History, [1950?]-c2004. url p. 14.
- Practical arboriculture; how forests influence climate, control the winds, prevent floods, sustain national prosperity, a text book for railway engineers, manufacturers, lumbermen and farmers. Connersville, Ind.[Hennebery Press]1906 url p. 283.
- Practical forestry / New Haven, Conn.: Connecticut Forest and Park Association,  url p. 51.
- Practical foresty; a popular handbook on the rearing and growth of trees for profit or ornament. LondonW. Rider[pref.1917] url p. 102.
- Practical landscape gardening: the importance of careful planning, locating the house, arrangement of walks and drives, construction of walks and drives, lawns and terraces, how to plant a property, laying out a flower garden, arch New York, A.T. De La Mare Company, inc., 1916. url .
- Practical landscape gardening; the importance of careful planning, locating the house, arrangement of walks and drives, construction of walks and drives, lawns and terraces, how to plant a property, laying out a flower garden, arch by Robert B. Cridland. New York, A.T. De La Mare Company, inc., 1918. url p. 79.
- Preliminary study of forest conditions in Tennessee. By R. Clifford Hall. Nashville, McQuiddy printing company, 1910. url p. 48.
- Proceedings and transactions of the South London Entomological & Natural History Society. London: The Society. url p. 30.
- Proceedings of a congress of horticulture held at Jamestown exposition September 23, 1907, conducted by the National Council of Horticulture at the request of R.H. Sexton. .. H.C. Irish, secretary. Jamestown, National Council of Horticulture, 1907. url p. 86.
- Proceedings of the California Academy of Sciences, 4th series. San Francisco, California Academy of Sciences. url p. 701.
- Proceedings of the Delaware County Institute of Science. Media, Pa.: The Institute, 1906- url p. 30.
- Productivity and herbivory in high and low diversity tropical successional ecosystems in Costa Rica / by Becky Jean Brown. 1982. url p. 38.
- Propagation of wild birds; a manual of applied ornithology, treating of practical methods of propagation of quails, grouse, wild turkey, pheasants, partridges, pigeons and doves, and waterfowl, in America, and of attracting and by Herbert K. Job. Illustrated from photographs mostly by the author. Garden City, N. Y., Doubleday, Page, 1915. url p. 241, p. 301.
- Report of the Michigan Academy of Science. Lansing, Mich.: The Academy, 1904-1916. url p. 165.
- Report of the Pennsylvania Department of Forestry, for the years. .. Harrisburg, Pa.: Harrisburg Pub. Co., state printer, 1907-1912. url , , p. 100, p. 66.
- Report on the forests of British East Africa. LondonPrinted for His Majesty's Stationery Off. by Darling1909 url p. 125.
- Roosevelt wild life bulletin. .. of the Roosevelt Life Forest Experiment Station of the New York College of Forestry at Syracuse University. Syracuse, N.Y.: The University, c1922- url p. 294.
- Schlich's Manual of forestry. London: Bradbury, Agnew & Co., 1904-1906. url p. 703.
- Science progress. London: John Murray, 1916- url p. 370.
- Seeding and planting; a manual for the guidance of forestry students, foresters, nurserymen, forest owners, and farmers, by James W. Toumey. .. New York, J. Wiley & sons, inc.; [etc., etc.]1916. url p. 447, p. 447.
- Shade and ornamental trees of California, by Merritt B. Pratt, state forester. Sacramento?1922? url p. 106, p. 106.
- Shade-trees in towns and cities: their selection, planting, and care as applied to the art of street decoration, their diseases and remedies, their municipal control and supervision / London: Chapman & Hall, c1911. url .
- Shade-trees in towns and cities; their selection, planting, and care as applied to the art of street decoration; their diseases and remedies; their control and supervision. New York, J. Wiley, 1911. url p. 47, p. 47.
- Sharp eyes; a rambler's calendar of fifty-two weeks among insects, birds, and flowers; by Wm. Hamilton Gibson. .. Illustrated by the author. New York [etc.]Harper & Brothers[c1919] url p. 321.
- Silvical characteristics of Canadian trees. [Toronto]University of Toronto, Foresters' Club[1915?] url p. 48, p. 5.
- Smithsonian year: annual report of the Smithsonian Institution for the year ended Sept. 30. .. 1983 City of Washington: For sale by the Supt. of Docs., U.S. G.P.O., 1980-2001. url p. 151.
- Special scientific report--wildlife / U.S. Department of the Interior, Fish and Wildlife Service. Washington, D.C.: The Service, 1949- url p. 282, p. 539.
- St. Mary's County. Baltimore, The Johns Hopkins Press, 1907. url p. 186.
- Stand dynamics in Connecticut hardwood forests: the old series plots (1927-1997) / New Haven: Connecticut Agricultural Experiment Station,  url p. 26.
- Standardized plant names; a catalogue of approved scientific and common names of plants in American commerce. Salem, Mass., 1923. url p. 497, p. 517.
- Students' handbook to accompany Plants and their uses / by Frederick Leroy Sargent. New York: Henry Holt, 1914. url .
- Studies in French forestry, by Theodore S. Woolsey, jr. with two chapters by William B. Greeley. New York, Wiley, 1920. url p. 43, p. 43.
- Studies in French forestry, with two chapters by William B. Greeley. New YorkWiley1920 url p. 43.
- Studies of Connecticut hardwoods; the treatment of advance growth arising as a result of thinnings and shelterwood cuttings, New Haven, Yale University, 1925. url p. 16.
- Studies of shade trees in California. 1913. url p. 57.
- Studies of trees / by J. J. Levison. New York: J. Wiley & sons, 1914. url p. 126, p. 90.
- Studies of trees / by J.J. Levison. New York: J. Wiley, 1914. url p. 90.
- Studies of trees in winter; a description of the deciduous trees of northeastern America, with an introd. by Charles S. Sargent, BostonKnight and Millet1905 url .
- Sturtevant's notes on edible plants / Edited by U.P. Hedrick. Albany: J.B. Lyon, 1919. url p. 338.
- Syllogeus. Ottawa, National Museum of Natural Sciences, 1972-1995. url p. 32, p. 34, p. 4, p. 61, p. 64.
- Taxonomic literature: a selective guide to botanical publications and collections with dates, commentaries and types (TL2) Utrecht: Bohn, Scheltema & Holkema, 1976-1988. url p. 280.
- Technical publication / New York State College of Forestry at Syracuse University. Syracuse, N.Y.: The College, 1914- url p. 132, p. 220, p. 415, p. 57, p. 66, p. 71, p. 71.
- Technical report: Illinois natural areas inventory / by the Department of Landscape Architecture, Univeristy of Illinois, Urbana-Champaign, and the Natural Land Institute, Rockford, Illinois. Urbana: Dept. of Landscape Architecture, University of Illinois and Natural Land Institute, 1978. url p. 258, p. 410.
- Textbook of theoretical botany, by R. C. McLean and W. R. Ivimey-Cook. London, Longmans, Green[1951- url p. 1614.
- The American flower garden / by Neltje Blanchan; planting lists by Leonard Barron; illustrated with one hundred full-page photographs. New York: Doubleday, Page & Company, 1909. url , p. 362.
- The American woods: exhibited by actual specimens and with copious explanatory text / by Romeyn B. Hough. Lowville, N.Y.: Pub., and sections prepared by the author, 1910, c1888 url , p. 10, p. 10, p. 3, p. 3, p. 40, p. 62.
- The Asa Gray bulletin. 2 1953 Ann Arbor, Mich. url p. 193, p. xiv.
- The Bradley bibliography; a guide to the literature of the woody plants of the world published before the beginning of the twentieth century; Cambridge, Riverside Press, 1911-18. url p. 52.
- The Canadian field-naturalist. Ottawa, Ottawa Field-Naturalists' Club. url p. 144, p. 206, p. 226, p. 291, p. 384, p. 480, p. 481, p. 518, p. 520, p. 526, p. 560, p. 646, p. 66, p. 689, p. 730, p. 741, p. 78.
- The Glasgow naturalist. Glasgow, Andersonian Naturalists of Glasgow. url p. 211.
- The Great Basin naturalist. 51 1991 Provo, Utah: M.L. Bean Life Science Museum, Brigham Young University, 1939-1999. url p. 298, p. 43.
- The Journal of heredity. Washington, etc., American Genetic Association url p. 273, p. 274, p. 424, p. 427, p. 427.
- The Natural history of the Toronto Region, Ontario, Canada / edited by J.H. Faull. -- Toronto: Canadian Institute, 1913. url , p. 91.
- The Nature-study review: devoted to all phases of nature-study in elementary schools. Lancaster, Pa.: [M.A. Bigelow], 1905- url p. 289, p. 291, p. 293.
- The Philippine journal of science. Manila: Bureau of Science url p. 282.
- The Pliocene floras of the Dutch-Prussian border, 's-Gravenhage, M. Nijhoff, 1915. url , , .
- The Review of applied entomology. Farnham Royal, Eng., etc.: Commonwealth Agricultural Bureaux, etc. url p. 421, p. 457, p. 669, p. 748.
- The San Jose or Chinese scale. Washington, Gov't print. off., 1906. url p. 40.
- The San José scale (Aspidiotus perniciosus, Comst.) and methods of treatment. A. E. Stene. Joint bulletin of the State board of agriculture and Extension department of the Rhode Island college of agriculture and mechanic arts. 1908. Providence, 1908 url p. 30.
- The Southern Appalachian forests, WashingtonGovt. Print. Off.1905 url p. 286, p. 33.
- The Yale Forest in Tolland and Windham counties, Connecticut, New Haven, Yale University, 1945. url p. 40.
- The art & craft of garden making / Thomas H. Mawson. London: B.T. Batsford;  url p. 284.
- The art of landscape architecture, its development and its application to modern landscape gardening, by Samuel Parsons. .. with 48 illustrations. London, G.P. Putnam's Sons, 1915. url p. 316.
- The bacteriology of diphtheria, including sections on the history, epidemiology and pathology of the disease, the mortality caused by it, the toxins and antitoxins and the serum disease, by F. Loeffler, Arthur Newsholme, F. B. Mallory, G. S. Graham-Smith, George Dean, William H. Park, Charles F. Bolduan. Ed. by G. H. F. Nuttall and G. S. Graham-Smith Cambridge [Eng.]University Press, 1913 url , .
- The bee-keeper's guide: or Manual of the apiary / Chicago. Ill.: George W. York & Co., 1910, 1883. url .
- The blossom circle of the year in southern gardens, New York, N.Y., A. T. De La Mare company, inc., 1922. url p. 183, p. 199.
- The bogs and bog flora of the Huron River Valley. .. By Edgar Nelson Transeau. [Chicago]The University of Chicago Press url p. 162.
- The book of forestry, by Frederick Franklin Moon. New York [etc.]: D. Appleton and company, 1916. url p. 288.
- The book of water gardening; New York, A. T. De La Mare printing and publishing co., ltd., 1907. url p. 37.
- The book of water gardening; giving in full detail all the practical information necessary to the selection, grouping and successful cultivation of aquatic and other plants required in the making of a water garden and its surroun by Peter Bisset. New York: A. T. De La Mare printing and Pub. Co., ltd., 1907. url p. 37.
- The complete garden, by Albert D. Taylor, assisted by Gordon D. Cooper. Illustrated with fifty full page cuts, four line charts, and nine coloured plates. Garden City, N.Y., Doubleday, Page, 1921. url p. 117, p. 162, p. 162, p. 173, p. 173, p. 289, p. 289, p. 291, p. 291.
- The complete home landscape, by Arthur J. Jennings, in collaboration with Leonard H. Johnson. New York, A. T. De La Mare, 1924. url p. 119, p. 139, p. 140.
- The distribution of vegetation in the United States, as related to climatic conditions [by] Burton E. Livingston and Forrest Shreve. [Washington]Carnegie institution of Washington, 1921. url p. 38, p. 393, p. 430, p. 431, p. 530, p. 534, p. 579, p. 58.
- The drug plants of Illinois / Leo R. Tehon; drawings by Kay H. Wadsworth. Urbana, Ill.: Natural History Survey Division, 1951. url p. 74.
- The encyclopedia of gardening. A dictionary of cultivated plants, etc., giving in alphabetical sequence the culture and propagation of hardy and half-hardy plants, trees and shrubs, orchids, ferns, fruit, vegetables, hothouse and g London, W. H. & L. Collingridge url , , .
- The filmy fern in Illinois. Urbana, 1961. url p. 12.
- The forests of Frederick county, Baltimore, Md., 1922. url p. 12.
- The forests of Washington County, Baltimore, Md., 1922. url p. 12.
- The geography of plants / by M. E. Hardy. Oxford: Clarendon press, 1920. url p. 319.
- The important timber trees of the United States, a manual of practical forestry, for the use fo foresters, students and laymen in forestry, lumbermen, farmers and other land-owners, and all who contem BostonH. Mifflin1912 url p. 283, p. 376.
- The natural history of Chautauqua. New York: B. W. Huebsch, 1917. url p. 41.
- The natural history of the Toronto region, Ontario, Canada / edited by J.H. Faull. Toronto: Canadian Institute, 1913. url p. 117, p. 91.
- The nature-study review Ithica, N.Y.: Comstock Pub. Co., 1905-1923 url p. 289, p. 290, p. 291, p. 292, p. 293.
- The new gardening: a guide to the most recent developments in the culture of flowers, fruits, and vegetables, by Walter P. Wright. .. New York, Doubleday, Page and company, 1913. url p. 266.
- The plant community [by] Herbert C. Hanson [and] Ethan D. Churchill. New York, Reinhold Pub. Corp. url p. 211.
- The plant life of Maryland, by Forrest Shreve [et al.] Baltimore, Johns Hopkins Press, 1910. url p. 227, p. 246, p. 255, p. 259, p. 278, p. 433, p. 520.
- The planting and care of shade trees, Trenton, State gazette publishing co., printers, 1912. url p. 117, p. 65.
- The plants of Michigan; simple keys for the identification of the native seed plants of the state, by Henry Allan Gleason. Ann Arbor, G. Wahr, c1918. url p. 40.
- The plants of Southern New Jersey with especial reference to the flora of the pine barrens and the geographic distribution of the species. Trenton, N. J., 1911. url , , , , , .
- The plants of Southern New Jersey; with especial reference to the flora of the Pine Barrens and the geographic distribution of the species. Trenton, 1911. url .
- The plants of southern New Jersey; with especial reference to the flora of the pine barrens and the geographic distribution of the species. Trenton, 1911. url , p. 446, p. 448.
- The practice of forestry, concerning also the financial aspect of afforestation. LondonT.F. Unwin1909 url p. 28, p. 496.
- The practice of forestry: concerning also the financial aspects of afforestation / by Percival Trentham Maw. London: T. F. Unwin, 1909. url p. 28, p. 496.
- The principal species of wood: their characteristic properties. By Charles Henry Snow. New York: J. Wiley & Sons; [etc., etc.], [c1908], 1910. url , , p. 88.
- The publications of the Pennsylvania chestnut tree blight commission, 1911-1913. Harrisburg: W. S. Ray, state printer, 1915. url p. 42.
- The relation of plant succession to crop production, a contribution to crop ecology. Columbus, The University, 1921. url p. 55.
- The timbers of commerce and their identification, London, W. Rider & son, limited, 1918. url , .
- The trees of Great Britain & Ireland / by Henry John Elwes and Augustine Henry. Edinburgh: Priv. print., 1906-13. url , p. 1033, p. 64, p. 65.
- The trees of Vermont, BurlingeonFree press printing co.1916 url p. 139, p. 232, p. 242.
- The vegetation of the New Jersey Pine-Barrens: an ecologic investigation / by John W. Harshberger. Philadelphia: Christopher Sower Company, 1916. url p. 100, p. 103, p. 136, p. 38.
- Thirty important forest trees of Maryland. How to know them. [n.p.], The Board, 1922. url .
- Timber technicalities: being definitions of terms used in the home and foreign timber, mahogany and hardwood industries, the sawmill and woodworking trades, as well as those employed in connection with architecture and buil London: W. Rider url p. 150, p. 154, p. 21.
- Timber. LondonConstable1908 url p. 102, p. 343.
- Timbers and their uses; a handbook for woodworkers, merchants, and all interested in the conversion and use of timber, London, E. P. Dutton & Co., 1919. url .
- Town planting and the trees, shrubs, herbaceous and other plants that are best adapted for resisting smoke. London: E.P. Dutton & co.,  url p. 191, p. 200, p. 208, p. 79.
- Transactions of the Kentucky Academy of Science. [Lexington, Ky.]Kentucky Academy of Science, 1923-1997. url p. 1, p. 101, p. 103, p. 104, p. 108, p. 110, p. 112, p. 12, p. 13, p. 13, p. 136, p. 14, p. 147, p. 149, p. 15, p. 150, p. 152, p. 153, p. 158, p. 16, p. 16, p. 167, p. 169, p. 174, p. 177, p. 18, p. 19, p. 19, p. 199, p. 2, p. 2, p. 21, p. 236, p. 29, p. 3, p. 31, p. 32, p. 34, p. 37, p. 4, p. 40, p. 41, p. 41, p. 46, p. 47, p. 48, p. 48, p. 49, p. 5, p. 50, p. 51, p. 6, p. 60, p. 7, p. 78, p. 8, p. 9, p. 94.
- Tree ancestors; a glimpse into the past, by Edward Wilber Berry. Baltimore, Williams & Wilkins, 1923. url p. 171.
- Tree guide: trees east of the Rockies / by Julia Ellen Rogers. Garden City, N.Y.: Doubleday, Page & Company, 1916, c1914. url p. 258.
- Trees & shrubs for English gardens. [London]"Country life", 1908. url p. 221, p. 233.
- Trees and shrubs hardy in the British Isles / by W. J. Bean. London: J. Murray, 1916. url p. 35.
- Trees and shrubs of Prospect park, New York, The Greenwich printing company[c1906] url p. 159, p. 186, p. 40, p. 5, p. 70, p. 87.
- Trees and shrubs of the British Isles; native and acclimatised, LondonDent1909 url p. 239, p. 28.
- Trees for Long Island. [S.l.:s.n.], 1908. url p. 27.
- Trees of Indiana / Indianapolis: State Board of Forestry of Indiana, 1919. url p. 156.
- Trees of Indiana / by Chas. C. Deam Fort Wayne, Ind.: Fort Wayne Printing Co., 1921 url p. 160.
- Trees of Indiana, Fort Wayne, Ind., Fort Wayne printing company, 1911. url p. 233.
- Trees of New York State: native and naturalized / by H.P. Brown. Syracuse, N.Y.: The University, 1921 [c1922] url p. 220, p. 398, p. 415, p. 57, p. 66.
- Trees of Ohio and surrounding territory, including the area westward to the limits of the prairie and south to the thirty seventh parallel. Columbus, Ohio1909 url p. 149.
- Trees worth knowing / by Julia Ellen Rogers. Garden City, N.Y.: Doubleday, Page, 1922. url p. 109, p. 287.
- Trees: a woodland notebook containing observations on certain British and exotic trees / by Sir Herbert Maxwell; illustrated with photographs by Mr. Henry Irving and others. Glasgow: James Maclehose and Sons, Publishers to the University, 1915. url p. 105.
- Trees: the yearbook of agriculture 1949. Washington, D.C.: U.S. Dept. of Agriculture: 1949. url p. 767, p. 785, p. 942.
- Trees: the yearbook of agriculture, 1949 / the United States Department of Agriculture. Washington, D.C.: United States Government Printing Office, 1949 url p. 767, p. 785, p. 944.
- Trends and silvicultural significance of upland forest successions in southern New England, New Haven, Yale University, 1928 url p. 64.
- Tulane studies in zoology and botany. 18 1973 New Orleans: Tulane University, [1968- url p. 7.
- University of California publications in entomology. [Berkeley]: University of California Press, 1906- url p. 468.
- Utilization of hardwoods growing on southern pine sites / Peter Koch. Washington, D.C.: For sale by the Supt. of Docs., U.S. G.P.O.,  url p. 3656.
- Variations and genetic relationships of the garter-snakes, by Alexander G. Ruthven. Washington, Govt. print. off., 1908. url p. 99.
- Variety in the little garden, by Mrs. Francis King. Boston, Atlantic Monthly Press[c1923] url p. 96.
- Vascular plants of the Sangamon River basin; annotated checklist and ecological summary [by] Almut G. Jones and David T. Bell. [Urbana], University of Illinois at Urbana-Champaign, College of Agriculture,  url p. 54.
- Vernacular list of trees, shrubs, and woody climbers in the Madras Presidency. Madras, Printed by the Superintendant, Government Press, 1915. url p. 344.
- Webster's Practical forestry: a popular handbook on the rearing and growth of trees for profit or ornament / by A.D. Webster. London: W. Rider & son, limited,  url p. 102.
- Webster's practical forestry: a popular handbook on the rearing and growth of trees for profit or ornament. By A.D. Webster. .. London, W. Rider & Son, Limited[pref. 1905] url p. 123, p. 124, p. 85.
- West Virginia trees. Morgantown, 1920. url p. 131, p. 131.
- Wetlands of the United States: current status and recent trends / by Ralph W. Tiner, Jr.. .. [et al.]. Washington, D.C.: National Wetlands Inventory, Fish and Wildlife Service, U.S. Dept. of the Interior: 1984. url p. 58.
- Wood and forest, by William Noyes... Peoria, Ill., Manual arts press, c url p. 158, p. 307.
- Wood; a manual of the natural history and industrial applications of the timbers of commerce. LondonE. Arnold1908 url p. 290, p. 318, p. 36, p. 83, p. 85.
- Woody plants in winter; a manual of common trees and shrubs in winter in the Northeastern United States and southeastern Canada, by Earl L. Core and Nelle P. Ammons. Pittsburgh, Boxwood Press url p. 95, p. 96.
- Yard and garden; a book of practical information for the amateur gardener in city, town or suburb, Indianapolis, The Bobbs-Merrill company[c1908] url , p. 413.
- Yellow poplar in Tennessee, by W. W. Ashe. Nashville, Tenn., 1913. url .
- Canright, J. E. 1960. The comparative morphology and relationships of the Magnoliaceae. III. Carpels. Amer. J. Bot. 47(2): 145-155.
- Demuth, P. and F. S. Santamour Jr. 1978. Carotenoid flower pigments in Liriodendron and Magnolia. Bull. Torrey Bot. Club 105(1): 65-66.
- Hardin, J. W. and K. A. Jones. 1989. Atlas of foliar surface features in woody plants, X. Magnoliaceae of the United States. Bull. Torrey Bot. Club 116(2): 164-173.
- Nooteboom, J. P. 1985. Notes on Magnoliaceae. Blumea 31: 65-121.
- Praglowski, J. 1974. Magnoliaceae Juss. Taxonomy by J. E. Dandy. World Pollen Spore Fl. 3: 1-48.
- Sargent, C. S. 1890-1902. The Silva of North America.... 14 vols. Boston and New York. Vol. 1, pp. 1-20.
- Spongberg, S. A. 1976. Magnoliaceae hardy in temperate North America. J. Arnold Arbor. 57: 250-312.
- Wood, C. E. Jr. 1958. The genera of the woody Ranales in the southeastern United States. J. Arnold Arbor. 39: 296-346.
- Berry, E. W. 1901. The origin of stipules in Liriodendron. Bull. Torrey Bot. Club 28: 493-498.
- Santamour, F. S. Jr. and F. G. Meyer. 1971. The two tuliptrees. Amer. Hort. Mag. 50(2): 87-89.
- Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 10, 2012.
- Global Biodiversity Information Facility. Accessed November 15, 2007. http://www.gbif.org Mediated distribution data from 18 providers.
- Light, Kris. East Tennessee Wildflowers
- "Liriodendron tulipifera". in Flora of North America Vol. 3. Published by Oxford University Press. Online at EFloras.org.
- Ruggiero M., Gordon D., Bailly N., Kirk P., Nicolson D. (2011). The Catalogue of Life Taxonomic Classification, Edition 2, Part A. In: Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist (Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D., eds). DVD; Species 2000: Reading, UK.
- The International Plant Names Index. Accessed Dec 27, 2011.
- The United States National Arboretum, Washington DC
- USDA, ARS, National Genetic Resources Program. Germplasm Resources Information Network - (GRIN) [Online Database]. National Germplasm Resources Laboratory, Beltsville, Maryland. URL (April 24, 2008)
- World Checklist of Selected Plant Families. Release date: November 27, 2009
Accessed through GBIF Data Portal November 15, 2007:
- Conservatoire botanique national du Bassin parisien, Conservatoire botanique national du Bassin parisien
- Missouri Botanical Garden, Missouri Botanical Garden
- Oregon State University, Vascular Plant Collection
- The New York Botanical Garden, Bronx River Bioblitz
- The Swedish Museum of Natural History
- , Herbarium of Oskarshamn
- US National Plant Germplasm System, United States National Plant Germplasm System Collection
- USDA PLANTS, USDA PLANTS Database
- University of Alabama Biodiversity and Systematics, Herbarium
- Utah Valley State College
- , Utah Valley State College Herbarium
- Biodiversity Heritage Library NamebankID: 2645062
- Catalogue of Life Accepted Name Code: Kew-113859
- Global Biodiversity Information Facility Taxonkey: 5884651
- Globally Unique Identifier: urn:lsid:ipni.org:names:554623-1
- GRIN Nomen Number: 22382
- Integrated Taxonomic Information System (ITIS) Taxonomic Serial Number (TSN): 18086
- International Plant Names Index (IPNI) ID: 554623-1
- Natural Heritage Network Species Identifier: PDMAG01010
- U.S.D.A. Plant Symbol: LITU
- Zipcode Zoo Species Identifier: 13744
- Frederick G. Meyer "Magnoliaceae". in Flora of North America Vol. 3. Oxford University Press. Online at EFloras.org. [back]
- "Liriodendron". in Flora of North America Vol. 3. Oxford University Press. Online at EFloras.org. [back]
- Mean = 216.890 meters (711.581 feet), Standard Deviation = 206.030 based on 1,084 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]