Subfamily: Caesalpinioideae.
Phylogenetic Number: 1.4.28.
Tribe: Detarieae.
Group: Crudia.
Species Studied - Species in Genus: 2 studied; 2 in genus.
Fruit: A legume; unilocular; 9.5–17 cm long; 2.5–5 cm wide; 0.5–0.7 cm thick; 2–9 times longer than wide; with deciduous androecial sheath; with deciduous corolla; with deciduous calyx; without orifice formed by curving of fruit or fruit segments; curved; not plicate; not twisted; asymmetrical; with 1 straight and 1 curved suture; widest at base, or widest near apex (lanceolate to oblong); not inflated; compressed; without beak; nearly tapered at apex; aligned with longitudinal axis of fruit to oblique with longitudinal axis of fruit; dorsal margin rounded at base; aligned with longitudinal axis of fruit; with the apex and base uniform in texture; coriaceous; seed chambers externally visible; margin not constricted; margin without sulcus; margin embellished; margin with wing(s); wing(s) present; wing(s) length of wing not given; wing(s) samaroid; wing(s) basal (wing basal, seed apical); stipitate to substipitate; with the stipe 1–15 mm long; indehiscent. Replum invisible. Epicarp dull; monochrome; reddish brown; with surface texture uniform; glabrous; eglandular; without spines; not smooth; with elevated features; veined; more or less longitudinally veined relative to fruit length; not tuberculate; glandular dotted; not exfoliating; without cracks; without embedded tissue, much thicker than epicarp, running from base to apex. Mesocarp present; surface not veined; 1-layered; without balsamic vesicles; without fibers; without reniform canals; solid; ligneous. Endocarp present; visible; dull; opaque; monochrome; brown; without adhering pieces of testa; septate; not exfoliating; remaining fused to mesocarp and epicarp; entire. Seed(s) 1; length parallel with fruit length. Funiculus 0.1–0.4 mm long; of 1 length only; thick; straight. Aril absent.
Seed: 18–30 mm long; 12–15 mm wide; 7–9 mm thick; not overgrown; not angular; symmetrical; oblong; compressed; with surface smooth; without visible radicle and cotyledon lobes; without hilar sinus; without umbo on seed faces; without medial ridge on each face. Cuticle not exfoliating; not inflated; not wrinkled. Testa present; without pieces of adhering epicarp; not adhering to endocarp; free from endocarp; dull; not modified by a bloom; colored; monochrome; black to brown; glabrous; not smooth; with elevated features; rugose; coriaceous. Pleurogram absent. Pseudopleurogram absent. Fracture lines absent. Rim absent. Wing(s) absent. Raphe not visible. Hilum present; visible; without faboid split; larger than punctiform; 0.1–1 mm long; with curved outline; elliptic; subapical to radicle tip; flush; not within corona, halo, or rim. Lens not discernible. Endosperm absent. Cotyledons smooth; both outer faces convex; both the same thickness; both more or less of equal length; not folded; margin entire 180 degrees from base of radicle; similar at apex; completely concealing radicle; entire over radicle; with the interface division terminating at base of radicle; without margins recessed; inner face flat; glabrous on inner face. Embryonic axis straight; oblique to length of seed; without a joint evident between the radicle and the cotyledons. Radicle differentiated from cotyledon; centered between cotyledons. Plumule well developed; glabrous.