Subfamily: Faboideae.
Phylogenetic Number: 3.10.48.
Tribe: Phaseoleae.
Subtribe: Kennediinae.
Species Studied - Species in Genus: 2 studied; 2 in genus.
Fruit: A legume; unilocular; 3.5–4.5 cm long (from literature); 0.3–1.1 cm wide (from literature); 0.4 cm thick (from literature); 2–9 times longer than wide; with deciduous androecial sheath; with deciduous corolla; with persistent calyx; with calyx shorter than fruit; without orifice formed by curving of fruit or fruit segments; slightly curved; not plicate; not twisted; asymmetrical; nearly linear; with both sutures parallelly curved; not inflated; compressed to terete; without beak; short tapered at apex; aligned with longitudinal axis of fruit (nearly); tapered at base to short tapered at base; oblique with longitudinal axis of fruit; with the apex and base uniform in texture; coriaceous; seed chambers externally invisible; margin not constricted; margin without sulcus; margin embellished; margin with thickened sutural areas; wing(s) absent; nonstipitate; with all layers dehiscing; splitting along suture(s). Dehiscence of valves along both sutures; apical and down; active; with valves twisting. Replum invisible. Epicarp dull; monochrome; brown (to violet brown in literature); with surface texture uniform; glabrous; eglandular; without spines; not smooth; with elevated features, or recessed features; not veined; not tuberculate; minutely, obliquely rugose; slitted obliquely; not exfoliating; without cracks; without embedded tissue, much thicker than epicarp, running from base to apex. Mesocarp present; thin; surface not veined; 1-layered; without balsamic vesicles; without fibers; without reniform canals; solid; coriaceous. Endocarp present; visible; dull; opaque; monochrome; orangish brown, or tan; smooth, or cracked; without adhering pieces of testa; nonseptate; chartaceous; exfoliating in part; remaining fused to mesocarp and epicarp; without wings; entire. Seed(s) 5–6; length transverse to fruit length; neither overlapping nor touching; in 1 series. Funiculus 0.5–2 mm long; of 1 length only; flattened; triangular. Aril present; fleshy; when fleshy annular to 2-lipped rim-aril (with lips fused, but thinner in area of fusion); entire to crenate; covering less than 1/2 of seed; with tongues (or flap) on lips of 2-lipped rim-aril; with 1 tongue or flap on 1 lip of 2-lipped rim-aril, or 2 tongues or flaps, 1 on each lip of 2-lipped rim-aril.
Seed: 5.5–9 mm long; 2.6–4.5 mm wide; 2.5–4 mm thick; not overgrown; not angular; asymmetrical; elliptic to rectangular; terete; 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; brown; glabrous; smooth; chartaceous. Pleurogram absent. Pseudopleurogram absent. Fracture lines absent. Rim absent. Wing(s) absent. Raphe not visible. Hilum present; partially concealed; concealed by aril; with faboid split; with the lips of the faboid split the same color as the rest of the hilum; larger than punctiform; 2.5–4 mm long; with curved outline; elliptic; marginal according to radicle tip; flush; not within corona, halo, or rim. Lens discernible; 0.5–1.5 mm long; with margins straight; linear; not in groove of raphe; confluent with hilum; flush; similar color as testa; darker than testa; within halo; halo color darker than testa. Endosperm present; thick; covering entire embryo; adnate to embryo. Cotyledons not smooth; sulcate; 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; not concealing radicle; split over radicle; without lobes; with the interface division terminating at base of radicle; without margins recessed; tan; inner face flat; glabrous on inner face. Embryonic axis oblique; oblique to length of seed; without a joint evident between the radicle and the cotyledons. Radicle differentiated from cotyledon; bulbose; lobe tip curved; oblique to cotyledons; centered between cotyledons; less than 1/2 length of cotyledons. Plumule well developed; glabrous.