Subfamily: Faboideae.
Phylogenetic Number: 3.8.03.
Tribe: Robinieae.
Group: Gliricidia.
Species Studied - Species in Genus: 3 studied; 3 in genus.
Fruit: A legume; unilocular; 5–11 cm long; 1.2–2 cm wide; 0.8 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; straight; not plicate; not twisted; asymmetrical; with 1 straight and 1 curved suture; widest near apex; not inflated; compressed; without beak; short tapered at apex; aligned with longitudinal axis of fruit; tapered at base; aligned with longitudinal axis of fruit, or oblique with longitudinal axis of fruit; with the apex and base uniform in texture; ligneous; seed chambers externally invisible; margin not constricted; margin without sulcus; margin plain; wing(s) absent; nonstipitate, or substipitate; with all layers dehiscing; splitting along suture(s). Dehiscence of valves along both sutures; apical and down; active, or passive; with valves twisting (somewhat). Replum invisible. Epicarp dull; monochrome; brown (dark reddish); with surface texture uniform; glabrous; eglandular; without spines; not smooth; with elevated features; not veined; not tuberculate; wrinkled; not exfoliating; without cracks; without embedded tissue, much thicker than epicarp, running from base to apex. Mesocarp present; thick; surface not veined; 1-layered; without balsamic vesicles; without fibers; without reniform canals; solid; ligneous. Endocarp present; visible; dull; opaque; monochrome; tan; smooth; without adhering pieces of testa; nonseptate; coriaceous; not exfoliating; remaining fused to mesocarp and epicarp; without wings; entire. Seed(s) 1–4; length parallel with fruit length; neither overlapping nor touching; in 1 series. Funiculus of 1 length only; flattened; straight. Aril present; dry; when dry tongue-aril; entire.
Seed: 9–12 mm long; 8–9 mm wide; 4.5–5.2 mm thick; not overgrown; not angular, or angular (somewhat); asymmetrical; D-shaped, or ovate; 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; glossy; not modified by a bloom; colored; bichrome (outer rim lighter than inner face though not clearly demarked like a pleurogram or pseudopleurogram); brown (dark reddish); glabrous; not smooth; with recessed features; pitted with small separate pits; coriaceous. Pleurogram absent. Pseudopleurogram absent. Fracture lines absent. Rim absent. Wing(s) absent. Raphe visible; from hilum to lens (3/4 way around seed); not bifurcating; color of testa; raised. Hilum present; visible, or fully concealed; concealed by funiculus; with faboid split; with the lips of the faboid split the same color as the rest of the hilum; larger than punctiform; 1 mm long; with curved outline; circular; marginal according to radicle tip, or apical at apex of radicle tip; recessed (barely); within rim; rim color darker than testa. Lens discernible; 1.5–1.7 mm long; with margins straight, or curved; wedge-shaped, or irregular; irregular; not in groove of raphe; 270 degrees from hilum; mounded; same color as testa; not within corona, halo, or rim. Endosperm present; thin; not pluglike and not resembling tip of radicle; covering entire embryo; adnate to testa. Cotyledons not smooth; both outer faces convex; both the same thickness; 1 longer than other; not folded; margin entire 180 degrees from base of radicle; similar at apex; partially concealing radicle; entire over radicle; without lobes; with the interface division terminating at base of radicle; without margins recessed; tan (reddish); inner face flat; glabrous on inner face. Embryonic axis deflexed; oblique to length of seed; without a joint evident between the radicle and the cotyledons. Radicle differentiated from cotyledon; triangular; deflexed and parallel to cotyledon width; not centered between cotyledons (radicle outside 1 cotyledon and inside other, therefore junctions for each cotyledon different) (slightly); less than 1/2 length of cotyledons. Plumule glabrous.