Fabaceae subfam. Cercidoideae
(synonym of Fabaceae subfam. cercidoideae)
unifoliolate or 2-foliolate.
caesalpinioid or pseudopapilionaceous, bilateral;
sepals connate or distinct, spathaceous or 2–5-lobed;
petals distinct, (2–)5(or 6);
stamens usually 10, rarely 1, 3, or 5, filaments partly connate or distinct, anthers dorsifixed;
pollen in monads, rarely in tetrads.
legumes, dehiscent or indehiscent.
with apical crescent-shaped or circular hilum, complex hilar valve absent, pleurograms absent;
embryo straight.
nectaries present or absent, stipular, not on petiole or rachis.
lateral, free.
= 7.
Fabaceae subfam. Cercidoideae
North America; Mexico; Central America; South America; West Indies; e Europe; s Europe; Asia; Africa [Introduced widely]
Genera 12, species ca. 335 (3 genera, 8 species in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key to Genera of Subfamily Cercidoideae
1. Vines, twining, tendrils present. | Phanera |
1. Trees or shrubs, tendrils absent. | → 2 |
2. Leaves unifoliolate, not lobate; inflorescences fascicled from old wood, appearing before leaves; flowers pseudopapilionaceous (banner enclosed by wings which are enclosed by keel petals); fertile stamens 10; legumes narrowly winged; seeds with a circular hilum, funicular aril lobes absent; widespread. | Cercis |
2. Leaves unifoliolate or 2-foliolate, usually 2-lobate; inflorescences not fascicled from old wood, usually appearing after leaves; flowers caesalpinioid; fertile stamens 1, 3, 5 or 10; legumes not winged; seeds with a crescent-shaped hilum, funicular aril lobes present; Florida, Texas. | Bauhinia |
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