The Rutaceae are herbs, shrubs , and trees with glandular punctate , commonly strongly smelling herbage comprising about 150 genera and 1,500 species that are further characterized by the common occurrence of spines and winged petioles . The leaves are alternate or opposite, simple or palmately or pinnately compound , or sometimes heathlike or reduced to spines; stipules are absent. The flowers are often sweet-scented, nearly always bisexual , and are actinomorphic or sometimes zygomorphic. The calyx consists of 3-5 distinct or basally connate sepals and the corolla consists of 3-5 distinct or sometimes connate petals or rarely the petals are lacking. The androecium consists of distinct or sometimes connate stamens that are commonly obdiplostemonous , that is in two whorls with the outer whorl opposite the petals. However, sometimes there may be (1)3-4 whorls or rarely up to 60 stamens. The gynoecium consists of a single compound pistil of commonly 2-5 or more, often incompletely connate carpels that may be united only basally or apically, either one or an equal number of styles, and a superior ovary with usually 2-5 or more locules, each bearing 1-several axile ovules. Generally, an intrastaminal nectary disk is situated between the stamens and the ovary. The fruit is variable. -- Gerald Carr.
- Whittaker & Margulis,1978
- Haeckel, 1866
- Cavalier-Smith, 1981
- Sinnott, 1935 ex Cavalier-Smith, 1998
- Vascular Plants
- Kenrick & Crane, 1997
- Brongniart, 1843
- Takhtajan, 1967
- Takhtajan, 1967
- Order: Sapindales () - Dumortier, 1829
- Superorder: Rutanae () - Takhtajan, 1967
- Subclass: Rosidae () - 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
Members of the genus Ptelea
ZipcodeZoo has pages for 12 species, subspecies, varieties, forms, and cultivars in this genus:
P. crenulata (California Hoptree) · P. trifoliata (Common Hop Tree) · P. trifoliata var. angustifolia (Common Hoptree) · P. trifoliata var. cognata (Pallid Hoptree) · P. trifoliata var. confinis (Pallid Hoptree) · P. trifoliata var. lutescens (Pallid Hoptree) · P. trifoliata var. mollis (Common Hoptree) · P. trifoliata var. pallida (Pallid Hoptree) · P. trifoliata var. trifoliata (Common Hoptree) · P. trifoliata subsp. angustifolia (Common Hoptree) · P. trifoliata subsp. pallida (Narrowleaf Hoptree) · P. trifoliata subsp. polyadenia (Pallid Hoptree)
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- A text-book of mycology and plant pathology, by John W. Harshberger. Philadelphia: P. Blakiston's Son & Co., [c1917] url p. 405.
- Annals of horticulture in North America for the year 1893. A witness of passing events and a record of progress. Comprising and account of the horticulture of the Columbian exposition, by L. H. Bailey. New York, Judd, c1894. url p. 175.
- Britton, N. L. (ed.). North American flora. [New York]New York Botanical Garden. url p. 209.
- Hand-list of Coniferae: grown in the Royal botanic gardens. London: Printed for H. M. Stationery off. by Darling & son, Ltd., 1903. url p. 75.
- Hand-list of trees and shrubs, excluding Coniferae, grown in Arboretum. LondonPrinted for H.M. Stationery Off., by Darling1902 url p. 75.
- International catalogue of scientific literature. London: Published for the International Council by the Royal Society of London, 1902-1919. url p. 40, p. 487.
- Journal of economic entomology. [College Park, Md., etc.]Entomological Society of America [etc.] url p. 552.
- Journal of the Royal Microscopical Society. Oxford [etc.]Royal Microscopical Society. url p. 989, p. 990.
- Smithsonian contributions to knowledge. Washington: Smithsonian Institution, 1848-1916. url p. 31.
- Smithsonian miscellaneous collections. 15 1878 Washington: Smithsonian Institution, 1862-1968. url p. 155.
- The American midland naturalist. Notre Dame, Ind., University of Notre Dame. url p. 178.
- The silva of North America: a description of the trees which grow naturally in North America exclusive of Mexico /by Charles Sprague Sargent. .. illustrated with figures and analyses drawn from nature by Charles Edward Faxon. .. 14 1902 Boston, New York: Houghton, Mifflin and company, 1891-1902. url p. 140.
- Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 15, 2012.