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FOC | Family List | FOC Vol. 10 | Fabaceae


甘豆族 gan dou zu

Authors: Dezhao Chen, Prof. Dianxiang Zhang, Ding Hou, Kai Larsen & Supee Saksuwan Larsen

Leaves pinnate, sometimes only with 1 pair of leaflets or a single leaflet. Bracteoles caducous, imbricate or valvate, persistent. Flowers bisexual, actinomorphic to conspicuously zygomorphic. Receptacle shallowly cup-shaped or tubular. Sepals usually 4 or 5, often enclosing petals when flowers in bud. Petals absent to 5. Perfect stamens 2-10 or numerous; anthers basifixed or dorsifixed, opening by lateral slits, sometimes with staminodes. Ovary stipitate or sessile; stipe free or adnate to receptacle.

About 80 genera and 730-770 species: distributed in tropical regions; six genera (three introduced) and ten species (two endemic, five intro­duced) in China.

1 Bracteoles sepaloid or petaloid, enclosing flower bud before flowering; stalk of ovary adnate to hypanthium.   8 Tamarindus
+ Bracteoles not sepaloid or petaloid, imbricate, often caducous; ovary inserted at center and free from hypanthium   (2)
2 (1) Petals absent; calyx lobes petaloid.   4 Saraca
+ Petals present   (3)
3 (2) Petals 3 or 5   (4)
+ Petal 1, rarely 2   (5)
4 (3) Flowers purplish red or pink; perfect stamens 2; leaves abruptly pinnate; leaflets 3-5 pairs.   3 Lysidice
+ Flowers white; perfect stamens 10; leaves with 1 pair of leaflets.   6 Hymenaea
5 (3) Petals with long claw, exceeding above sepals; legume oblong; seeds with horny aril at base.   5 Afzelia
+ Petals not clawed, enclosed in uppermost calyx lobe; legume orbicular or elliptic; seeds with fleshy aril at base.   7 Sindora

Lower Taxa


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