Fabaceae
豆科
特徵描述
[ Leguminosae 豆科 ]
作者
HUANG, TSENG-CHIEN and OHASHI, HIROYOSHI
型態特徵
Herbs, shrubs, or trees. Leaves stipulate and usually alternate, pinnate or digitately compound, or simple, sometimes with the rachis ending in a tendril. Inflorescence variable, axillary, leaf-opposed or terminal, mostly pseudoracemose or panicled, bracts and bracteoles usually both present; flowers usually irregular, hermaphroditic, rarely regular or polygamous; sepals 4–5, connate or free, often unequal, sometimes combined into 2 lips; petals 5, rarely fewer by reduction, usually free and unequal; stamens normally 10, perigynous or hypogynous, rarely fewer or indefinite; filaments free or variously connate; anthers 2-celled, generally longitudinally dehiscent; ovary free; style simple, cylindrical, usually declinate, stigma capitate, terminal or oblique; ovules one or more on the ventral suture. Fruit usually a dry, dehiscent legume, typically dehiscent by one or both sutures into two valves, or indehiscent, sometimes jointed and separating into 1-seeded joints. Seeds usually exalbuminous; cotyledons foliaceous or amygdaloid, with a straight or inflexed acumbent radicle.
屬
Genera about 650, species over 18,000, cosmopolitan. About 60 genera and 170 species in Taiwan.
參考文獻
- Huang, S. F. & T. C. Huang. 1987. Taiwania 32(1): 11-118.
- Huang, T. C. et al. 1992. Taiwania 36(4): 318-395.
- Li, H. L. 1963. Livingston Publ. Comp. Pennsylvania 329-362.
- Liu, T. S. 1960. College of Agriculture, National Taiwan University, Taipei. (1): 483-551.
- Ohashi, H. et al. 1984. The science reports of the Tohoku Imperial University. Fourth Series, Biology (38): 277-334. (Sci. Rep. Tohoku Univ. 4. Biol.)
- Ohashi, H. et al. 1985. The science reports of the Tohoku Imperial University. Fourth Series, Biology (39): 53-66. (Sci. Rep. Tohoku Univ. 4. Biol.)
- Ohashi, H. et al. 1988. The science reports of the Tohoku Imperial University. Fourth Series, Biology (39): 191-248. (Sci. Rep. Tohoku Univ. 4. Biol.)
- Ohashi, H. et al. 1991. The science reports of the Tohoku Imperial University. Fourth Series, Biology (40): 1-37. (Sci. Rep. Tohoku Univ. 4. Biol.)
- HUANG, TSENG-CHIEN and OHASHI, HIROYOSHI. 1993. Flora of Taiwan, second edition 3: 160. (Fl. Taiwan 2nd edit.)
Ormosia 紅豆樹屬
作者
HUANG, TSENG-CHIEN and OHASHI, HIROYOSHI
型態特徵
Erect trees. Leaves odd-pinnate. Flowers usually in dense terminal racemes; calyx campanulate, densely hairy deeply 5-cleft, the upper teeth the shortest; corolla white or purple, the petals all with short claws, about equal in length, the standard orbicular, with emarginate apex, the keel and wings obovate, with obtuse apex, the 2 wing-petals with 1–2 unequal auricles at the base; keel-petals free; stamens free, much incurved, the anthers versatile; ovary stipitate gynophorous; style long, filiform, circinate at the end, the stigma bilobed. Pods thick, rigid or rather fleshly, turgid, 2–3-valved, the sutures not winged; seeds with bright, scarlet aril or testa.
Species about 100, in tropics of eastern South America and easttern Asia to northern Australia; two in Taiwan.
