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Ormosia G. Jacks.

红豆树属

Description from Flora of China

Arillaria Kurz; Fedorovia Yakovlev; Layia Hooker & Arnott (1833), not Hooker & Arnott ex Candolle (1838, nom. cons.); Macroule Pierce; Ormosiopsis Ducke; Podopetalum F. Mueller; Ruddia Yakovlev; Toulichiba Adanson; Trichocyamos Yakovlev.

Trees or shrubs; buds naked or subtended by stipules. Leaves alternate, rarely subopposite, imparipinnate, paripinnate, or rarely simple (1-foliolate); stipules usually small or inconspicuous, rarely lacking; leaflets (1-)3-11(-19), opposite, often leathery or thickly papery; stipels usually absent. Inflorescences paniculate or racemose, axillary or terminal. Bracts small, caducous. Calyx campanu­late; teeth 5, unequal, upper 2 connate. Corolla white, yellow, lavender, or purple, longer than calyx; petals clawed; standard subor­bicular; wings and keel oblique, obovate-oblong, keel petals free. Stamens 10, exserted, free or only slightly basally connate, sub­equal, incurved; anthers small, versatile, undeveloped or degenerate on a few filaments. Ovary subsessile; ovules 1 to many; style long, filiform, incurved; stigma oblique or terminal. Legumes woody or leathery, 2(or 3)-valved, rarely indehiscent, ovate to oblong or obovate, laterally compressed to nearly cylindric; valves internally septate between seeds or without septae; sutures without wings; calyx persistent or deciduous. Seeds 1 to many, red, scarlet, brown, or black, sometimes 2-toned; hilum seldom over 1/2 length of seed, white; cotyledon often fleshy.

Ormosia monosperma (Swartz) Urban was reported for Taiwan by F. C. Ho (J. Taiwan Mus. 36(2): 1-5. 1983), but the species is not known as an escape, only as a cultivated ornamental.

The Asian species of Ormosia are in need of a complete revision.

About 130 species: tropical America, SE Asia, N Australia; 37 species (34 endemic) in China.

(Authors: Sun Hang (孙航); Michael A. Vincent)

经济区 Economic Plants Area, 中心区 Central Area, 分类区 Classified Area, 药用植物园 Medicinal Plants Area, 荫生植物区 Shady Plants Area, 木本花卉区 Woody Accrescent Area, 濒危园 Endangered Plants Garden, 标本园 Specimens Garden, 引种苗圃 Introducing Plants Nursery, 蒲岗保护区 Pu Gang Reserve

  • List of lower taxa


     

    Related Objects  

    Flora of China  
  • Ormosia (PDF)
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