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FOC | Family List | FOC Vol. 10 | Fabaceae

7. Tribe INGEAE

印加树族 yin jia shu zu

Authors: Delin Wu & Ivan C. Nielsen

Leaves pinnate or bipinnate; stipules most often inconspicuous, sometimes spinescent; petiole, rachis, and pinnae most often with glands; leaflets opposite or (rarely) alternate, rarely 1-foliolate. Flowers heteromorphic or not, in heads, corymbs, umbels, racemes, spikes, or panicles, these again axillary or arranged in axillary and/or terminal panicle, cauliflory present in some genera. Calyx gamosepalous, valvate. Corolla gamopetalous, valvate. Stamens numerous, lower part of filaments united into a tube; anther glandless; pollen-grains usually collected into 2-6 masses in each locus. Ovaries 1 to many, free. Legumes various, dehiscent or not, straight, spirally contorted to curved, moniliform or not, segmented or not, funicular aril present in a few species. Seeds various, with pleurogram or not.

About 35 genera and 930-970 species: mostly distributed in tropics; seven genera (four introduced) and 38 species (five endemic, seven intro­duced) in China.

1 Legume dehiscent into 2 valves   (2)
+ Legume indehiscent or late dehiscent   (4)
2 (1) Legume curved into a circle; stipules spinescent.   33 Pithecellobium
+ Legume straight or slightly curved; stipules not spinescent   (3)
3 (2) Legume with thickened sutures, elastically dehiscing from apex and downward; seeds with pleurogram.   32 Calliandra
+ Legume without thickened sutures, dehiscing along both dorsal and ventral sutures; seeds without pleurogram.   37 Archidendron
4 (1) Legume contorted into a half or full circle.   36 Enterolobium
+ Legume straight   (5)
5 (4) Flowers in spikes.   34 Falcataria
+ Flowers in head or short corymbs   (6)
6 (5) Legume septate between seeds, thick, fleshy.   38 Samanea
+ Legume not septate between seeds, flat, thin.   35 Albizia

Lower Taxa


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