Interesting Facts
Common Names
Click on the language to view common names.
Common Names in English:
White Eucalyptus, Ridge Gum
Common Names in Portuguese:
Eucalipto
Description
Family Myrtaceae
Trees
or shrubs
, evergreen
, usually with essential oils-containing cavities in foliage
, branchlets
, and flowers. Stipules absent or small and caducous
. Leaves opposite, occasionally alternate, occasionally ternate
or pseudo-whorled; leaf blade
with secondary veins pinnate or basal, often with intramarginal veins
near margin
, margin usually entire. Inflorescences axillary
or terminal
, cymose
but variously arranged, 1- to many-flowered. Flowers bisexual
, sometimes polygamous, actinomorphic
. Hypanthium usually adnate
to ovary and prolonged above it. Calyx lobes
(3 or) 4 or 5 or more, distinct
or connate
into a calyptra. Petals 4 or 5, sometimes absent, distinct or connate into a calyptra, sometimes coherent and pseudocalyptrate. Stamens usually numerous
, in 1 to several whorls; filaments
distinct or connate into 5 bundles opposite petals; anthers
2-celled, dorsifixed
or basifixed
, dehiscing longitudinally or rarely terminally; connectives
usually terminating in 1 or more apical glands
. Ovary inferior, semi-inferior, or very rarely superior, carpels 2 to more, locules 1 to many, pseudoseptum sometimes present, placentation usually axile
but occasionally parietal
; ovules 1 to several per locule. Style single; stigma single. Fruit a capsule, berry, drupaceous
berry, or drupe, 1- to many-seeded. Seeds without endosperm or endosperm sparse and thin; testa cartilaginous
or thinly membranous, sometimes absent; embryo straight or curved
.
About 130 genera and 4500-5000 species: Mediterranean region, sub-Saharan Africa, Madagascar, tropical
and temperate
Asia, Australia, Pacific islands, tropical and South America; 10 genera (five introduced
) and 121 species (50 endemic, 32 introduced treated here) in China.
Many Myrtaceae are cultivated garden ornamentals
, street trees, or plantation trees. Some members
of tribe
Syzygieae are grown as fruit crops. In addition to the cultivated members of the family
treated here, some others grown in China include Acca sellowiana (O. Berg
) Burrett (Feijoa sellowiana (O. Berg) O. Berg), Myrtus communis Linnaeus, and Syncarpia glomulifera (Smith) Niedenzu.[1]
Genus Eucalyptus
Trees
or shrubs
. Bark
smooth
, fibrous
, stringy, or tessellated. Leaves usually polymorphic
with different juvenile and mature
forms and sometimes with intermediate forms. Juvenile leaves opposite, 3 to several pairs, shortly petiolate
or sessile; leaf blade
often glaucous or with glandular
trichomes
; juvenile foliage
sometimes persisting throughout life of plant. Mature leaves alternate, petiolate; leaf blade usually leathery, secondary veins numerous
, with intramarginal veins
. Inflorescences axillary
or clustered into terminal
or axillary panicles, consisting of umbelliform condensed dichasia. Flowers bisexual
. Hypanthium campanulate
, obconic, or semiglobose, stipitate
or not, apex usually truncate
. Sepals rarely distinct
. Petals connate
, either adnate
to sepals into a 1-layered calyptra or not adnate and then with connate sepals forming a 2-layered calyptra; calyptra deciduous at anthesis
. Stamens numerous, usually distinct, in several whorls with outer whorl usually sterile
; anthers
2-celled, parallel or oblique
, elliptic
, ovate
, cordate, or bifurcate
, dehiscing longitudinally or occasionally poricidally. Ovary adnate to hypanthium, 2-7-loculed; ovules numerous. Style persistent
. Whole or most of capsule included
in expanded hypanthium; disk often well developed; valves
exserted from hypanthium, equaling hypanthium rim, or included in hypanthium. Seeds numerous, many sterile and undeveloped
, developed seeds ovate or angular; testa rigid
, sometimes developed into wings
.
About 700 species: mainly in Australia, with a minor representation in Indonesia, Papua New Guinea, and the Philippines; about 110 species cultivated in China with only 25 major ones treated here.
The genus is treated here in the broad sense, i.e.
, the segregate
Corymbia is not recognized.[2]
Physical Description
Species Eucalyptus alba
Trees , medium sized. Bark grayish white, smooth , exfoliating. Young leaves 3 or 4 pairs, opposite, petiolate ; leaf blade ovate-lanceolate. Intermediate leaves alternate; leaf blade ovate to triangular, ca. 7.5 cm. Mature leaves; with a slightly weak 2-3 cm petiole ; leaf blade broadly lanceolate to lanceolate, 10-13 × 2-4 cm, secondary veins at an angle of ca. 45° from midvein and inconspicuous on both surfaces, apex long and acutely pointed . Inflorescences axillary , simple , umbels 3-7-flowered; peduncle 1.5-2 cm, compressed . Flower buds elliptic , 8-9 mm. Hypanthium 4-5 mm; stipe 0-3 mm; calyptra slightly obtuse conic to slightly acute, shorter than hypanthium. Stamens 5-6 mm; anthers dorsifixed , dehiscing longitudinally. Capsule semiglobose to bowl-shaped, ca. 6 mm; disk broad or narrow; valves 3-5, exserted from hypanthium. [source]
Taxonomy
- Domain:
Eukaryota
(
)
- Whittaker & Margulis,1978
- eukaryotes
- Kingdom:
Plantae
(
)
- Haeckel, 1866
- Plants
- Subkingdom:
Viridaeplantae
(
)
- Cavalier-Smith, 1981
- Phylum:
Tracheophyta
(
)
- Sinnott, 1935 ex Cavalier-Smith, 1998
- Vascular Plants
- Subphylum:
Euphyllophytina
(
)
- Infraphylum:
Radiatopses
(
)
- Kenrick & Crane, 1997
- Class:
Spermatopsida
(
)
- Brongniart, 1843
- Subclass:
Rosidae
(
)
- Takhtajan, 1967
- Superorder:
Myrtanae
(
)
- Takhtajan, 1967
- Order:
Myrtales
(
)
- Reichenbach, 1828
- Suborder:
Myrtineae
(
)
-
- Family:
Myrtaceae
(
)
- A.L. de Jussieu, 1789, nom. cons.
- Myrtle Family
- Subfamily:
Leptospermoideae
(
)
- Genus:
Eucalyptus
(
)
- L'Héritier de Brutelle, 1789
- Gum
- Specific epithet:
alba
- Reinw. ex Bl.
- Botanical name: - Eucalyptus alba Reinw. ex Bl.
- Specific epithet:
alba
- Reinw. ex Bl.
- Genus:
Eucalyptus
(
- Subfamily:
Leptospermoideae
(
- Family:
Myrtaceae
(
- Suborder:
Myrtineae
(
- Order:
Myrtales
(
- Superorder:
Myrtanae
(
- Subclass:
Rosidae
(
- Class:
Spermatopsida
(
- Infraphylum:
Radiatopses
(
- Subphylum:
Euphyllophytina
(
- Phylum:
Tracheophyta
(
- Subkingdom:
Viridaeplantae
(
- Kingdom:
Plantae
(
Synonyms
Eucalyptus leucadendron Reinw.
Notes
Name
Status: Accepted Name
.
Last scrutiny: 2004
Similar Species
Members of the genus Eucalyptus
ZipcodeZoo has pages for 159 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them:
E. acaciiformis (Wattle-Leaved Peppermint) · E. aggregata (Rodway Black Gum) · E. alba (White Eucalyptus) · E. albens (White Box) · E. albida (White-Leaved Mallee) · E. albopurpurea (Coffin Bay Mallee) · E. alpina (Grampian Stringybark) · E. andrewsii (New England Ash) · E. angulosa (Kwaral) · E. angustissima (Narrow-Leaved Mallee) · E. apiculata (Narrow-Leaved Mallee Ash) · E. approximans (Barren Mountain Mallee) · E. archeri (Apple Cider Gum) · E. aspratilis (Flat-Topped Yate) · E. badjensis (Badja Gum Tree) · E. baeuerlenii (Baeuerlens Gum) · E. barberi (Barbers Gum Tree) · E. baxteri (Brown Stringybark) · E. blakelyi (Blakelys Red Gum) · E. botryoides (Bangalay) · E. bridgesiana (Apple Box) · E. brookeriana (Brookers Gum) · E. burdettiana (Burdetts Gum) · E. caesia (Gungurru) · E. caesia magna (Silver Princess) · E. caesia 'Magna' (Silver Princess Gum) · E. caliginosa (Broad-Leaved Stringybark) · E. calophylla (Redgum) · E. calycogona (Gooseberry Mallee) · E. camaldulensis (Red Gum) · E. camaldulensis var. obtusa (Red River Gum) · E. campaspe (Silver Gimlet) · E. camphora (Broad-Leaved Sallee) · E. cannonii (Capertree Stringybark) · E. cernua (Red-Flowered Moort) · E. cinerea (Argyle Apple) · E. cladocalyx (Sugar Gum) · E. cladocalyx var. nana (Dwarf Sugar Gum) · E. cloeziana (Gympie Messmate) · E. coccifera (Tasmanian Snow Gum) · E. conferruminata (Busy Yate) · E. consideniana (Prickly Stringybark) · E. cordata (Heart-Leaved Silver Gum) · E. cornuta (Yate) · E. coronata (Crowned Mallee) · E. crebra (Narrow-Leaved Red Ironbark) · E. crenulata (Buxton Gum) · E. crucis (Silver Mallee) · E. curtisii (Plunkett Mallee) · E. cyanophylla (Blue-Leaved Mallee) · E. cylindriflora (White Mallee) · E. cypellocarpa (Monkey Gum) · E. dealbata (Hill Gum) · E. deanei (Deanes Gum) · E. debeuzevillei (Jonama Snow Gum) · E. deglupta (Indonesian Gum) · E. diversicolor (Karri) · E. doratoxylon (Spearwood Mallee) · E. effusa (Rough-Barked Gimlet) · E. elata (River Peppermint) · E. erythrocorys (Illyarrie) · E. forrestiana (Fuchsia Gum) · E. fruticetorum (Eucalyptus) · E. gamophylla (Blue-Leaved Mallee) · E. gillii (Arkaroola Mallee) · E. glaucescens (Tingiringi Gum) · E. globoidea (White Stringybark) · E. globulus (Blue Gum) · E. globulus bicostata (Eurabbie) · E. globulus globulus (Bluegum Eucalyptus) · E. globulus globulus var. globulus (Tasmanian Blue Gum) · E. globulus maidenii (Maiden´s Gum) · E. gomphocephala (Tuart) · E. goniocalyx (Mountain Graygum) · E. grandis (Flooded Gum) · E. gregsoniana (Mallee Snow Gum) · E. grossa (Coarse-Leaved Mallee) · E. gunnii (Cider Gum) · E. gunnii 'Blue Ice' (Cider Gum) · E. gunnii 'Silver Drop' (Cider Gum) · E. haemastoma (Scribbly Gum) · E. halophila (Eucalyptus) · E. intertexta (Red Box) · E. jacksonii (Red Tingle) · E. kitsoniana (Bog Gum) · E. kruseana (Bookleaf Mallee) · E. lansdowneana (Box) · E. largiflorens (Black Box) · E. lehmannii (Bushy Yate) · E. leucoxylon (Eucalyptus) · E. leucoxylon leucoxylon (White Iron Bark) · E. leucoxylon var. Rosea (Yellow Gum) · E. loxophleba loxophleba (Eucalyptus) · E. macrocarpa (Blue Bush) · E. marginata (Jarrah) · E. microcorys (Australian Tallow Wood) · E. microtheca (Coolibah) · E. moorei nana (Little Sally) · E. morrisbyi (Morrisby's Gum) · E. mortoniana (Morton Eucalyptus)
More Info
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Further Reading
- A critical revision of the genus Eucalyptus, by J.H. Maiden. Sydney, Gullick, 1903-33. url , , , p. 15, p. 294, p. 339, p. 476, p. 597, p. 81, p. 90, p. 91, p. 93, p. 94, p. 98.
- A handbook of tropical gardening and planting, with special reference to Ceylon, by H. F. Macmillan. .. Colombo, H.W. Cave & co., 1914. url p. 307, p. 440, p. 442, p. 452.
- A naturalist's wanderings in the Eastern archipelago; a narrative of travel and exploration from 1878 to 1883, New York, Harper, 1885. url .
- Biologia centrali-americana; or, Contributions to the knowledge of the fauna and flora of Mexico and Central America. London, Pub. for the editors by R. H. Porter and Dulau & co., 1879-88. url .
- Companion to the Botanical magazine: being a journal, containing such interesting botanical information as does not come within the prescribed limits of the magazine; with occasional figures /by W.J. Hooker. 1 1835 London: Printed by E. Conchman. .. for the proprietor, S. Curtis, 1835-1836 [i.e., 1835-1837] url p. 309.
- Eucalyptographia. A descriptive atlas of the eucalypts of Australia and the adjoining islands; by Baron Ferd. von Mueller. .. Melbourne, J. Ferres, government printer, 1883. url , , , , , .
- Eucalyptus, Los Angeles, Cal., B. R. Baumgardt & co., 1895. url p. 186.
- Eucalyptus, by Abbot Kinney. Los Angeles, Cal., B.R. Baumgardt, 1895. url p. 186, p. 245.
- Illustrations of Australian plants collected in 1770 during Captain Cook's voyage round the world in H.M.S. Endeavour /by the Right Hon. Sir Joseph Banks and Daniel Solander, with determinations by James Britten. 3 1905 London, Printed by order of the Trustees of the British Museum, sold by Longmans, 1900-05. url p. 100, plate 116, p. 38.
- Nature. London, etc., Macmillan Journals Ltd., etc. url p. 12.
- Novon a journal of botanical nomenclature from the Missouri Botanical Garden. 3 1993 St. Louis, MO: Missouri Botanical Garden, url p. 136.
- Odorographia: a natural history of raw materials and drugs used in the perfume industry: intended to serve growers, manufacturers and consumers / by J. Ch. Sawer. London: Gurney & Jackson, 1892-1894. url p. 29.
- Pamphlets on forestry in Hawaii. [1900?- url p. 64.
- Plant-geography upon a physiological basis. Oxford: Clarendon Press, 1903. url p. 218.
- Proceedings of the Linnean Society of New South Wales. Sydney, Linnean Society of New South Wales. url p. 14, p. 166, p. 251, p. 708.
- Seeds and plants imported / U.S. Department of Agriculture. Washington, D.C.: G.P.O., 1903-1913. url p. 52, p. 56.
- Select extra-tropical plants readily eligible for industrial culture or naturalisation with indications of their native countries and some of their uses / by Baron Ferd. von Mueller. Melbourne: R. S. Brain, govt. printer, 1895. url p. 183, p. 631.
- Select extra-tropical plants, readily eligible for industrial culture or naturalisation, with indications of their native countries and some of their uses. By Baron Ferd. von Mueller. .. Sydney, T. Richards, government printer, 1881. url p. 126.
- Smithsonian miscellaneous collections. 130 1956 Washington: Smithsonian Institution, 1862-1968. url p. 100.
- Suggestions received by the Agricultural & Horticultural Society of India for extending the cultivation and introduction of useful and ornamental plants: with a view to the improvement of the agricultural and commercial resources of India / compiled by Henry Harpur Spry. Calcutta: Bishop's College Press, 1841. url p. 35.
- 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. 624.
- The Gardeners' chronicle: a weekly illustrated journal of horticulture and allied subjects. London: [Gardeners Chronicle], 1874-1955. url p. 130, p. 144, p. 246, p. 55.
- The Hawaiian forester and agriculturist. Honolulu: Hawaiian Gazette Co., 1904-1933. url p. 334.
- The Journal of the College of Science, Imperial University of Tokyo, Japan = Tokyo Teikoku Daigaku kiyo. Rika. Tokyo, Japan: The University, 1898-1925. url p. 26.
- The Journal of the Linnean Society. Botany. 10 1869 London: the Society: Longman, Green, Longman, Roberts & Green: ||Williams and Norgate, 1865-1968. url p. 142, p. 583.
- The forest resources of the territories of Papua and New Guineareport by C.E. Lane-Poole. 1925 [Melbourne]:Printed and Pub. for the government of the commonwealth of Australia by H.J. Green, government printer for the State of Victoria, [1925] url p. 206.
- The standard cyclopedia of horticulture; a discussion, for the amateur, and the professional and commercial grower, of the kinds, characteristics and methods of cultivation of the species of plants grown in the regions of the United States a Illustrated with colored plates, four thousand engravings in the text, and ninety-six full-page cuts. New York, Macmillan, 1919 [c1914] url p. 3621.
- Chang Hung-ta & Miau Ru-hwai. 1984. Myrtaceae. In: Chen Chieh, ed., Fl. Reipubl. Popularis Sin. 53(1): 28-135.
- Chang Hung-ta & Miau Ru-hwai. 1984. Myrtaceae. In: Chen Chieh, ed., Fl. Reipubl. Popularis Sin. 53(1): 28-135.
Notes
Contributors
- Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 11, 2012.
Data Sources
Accessed through GBIF Data Portal January 30, 2008:
- Australian National Herbarium
- , Australian National Herbarium
- Herbarium of the University of Aarhus, The AAU Herbarium Database
- Missouri Botanical Garden, Missouri Botanical Garden
- National Herbarium of New South Wales, Plants of Papua New Guinea
Identifiers
- Biodiversity Heritage Library NamebankID: 3876853
- Catalogue of Life Accepted Name Code: IOP-455192
- Globally Unique Identifier: urn:lsid:ipni.org:names:592664-1
- GRIN Nomen Number: 15838
- Integrated Taxonomic Information System (ITIS) Taxonomic Serial Number (TSN): 506178
- International Plant Names Index (IPNI) ID: 592664-1
- U.S.D.A. Plant Symbol: EUAL9
- Zipcode Zoo Species Identifier: 38572
Footnotes
- Jie Chen & Lyn A. Craven "Myrtaceae". in Flora of China Vol. 13 Page 321. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
- "Eucalyptus". in Flora of China Vol. 13 Page 321. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
