Subfamily: Caesalpinioideae.
Phylogenetic Number: 1.2.05.
Tribe: Cassieae.
Subtribe: Dialiinae.
Species Studied - Species in Genus: 3 studied; 3 in genus.
Fruit: A legume; unilocular; 7–15 cm long; 2–4 cm wide; 0.1–0.3 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; frequently 180 degrees twisted; asymmetrical; elliptic, or oblong to obovate; not inflated; flattened; without beak; long tapered at apex; aligned with longitudinal axis of fruit; long tapered at base to rounded at base; aligned 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 wing(s); wing(s) present; wing(s) 2 (?); wing(s) 0.1–10 mm wide; wing(s) valvular ("along sides and at apex"); wing(s) on both valves (?); nonstipitate; indehiscent (slightly dehiscent in germination). Replum invisible. Epicarp dull; monochrome; tan; with surface texture uniform; glabrous to pubescent and indurate (minute golden hairs); with hairs erect; with simple hairs; eglandular; without spines; not smooth; with elevated features, or recessed features; veined; reticulately veined; not tuberculate; punctate (black); 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; with fibers; without reniform canals; fibrous throughout; ligneous. Endocarp present; visible; glossy; opaque; monochrome; brown, or tan; without adhering pieces of testa; nonseptate; not exfoliating; remaining fused to mesocarp and epicarp; entire. Seed(s) 1; length parallel with fruit length. Funiculus 0.1–1 mm long; of 1 length only; thick; straight, or triangular. Aril absent.
Seed: 20–40 mm long; 10–17 mm wide; 1–2 mm thick; not overgrown; not angular; symmetrical; elliptic, or oblong; flattened; 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; monochrome; purplish red, or black, or brown; glabrous; smooth, or not smooth; with elevated features; rugose; chartaceous. Pleurogram absent. Pseudopleurogram absent. Fracture lines absent. Rim absent. Wing(s) absent. Raphe not visible. Hilum present; fully concealed; concealed by funicular remnant; without faboid split; punctiform; subapical to radicle tip (on shoulder of radicle); flush; not within corona, halo, or rim. Lens not discernible. Endosperm present; thick; not pluglike and not resembling tip of radicle; adnate to testa. 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; partially concealing radicle; with lobes (1 lobe longer than the other); with lobes not touching; with the interface division terminating at base of radicle; without margins recessed; inner face flat; glabrous on inner face. Embryonic axis straight, or oblique; parallel to length of seed to oblique to length of seed; without a joint evident between the radicle and the cotyledons. Radicle differentiated from cotyledon; centered between cotyledons. Plumule rudimentary; glabrous.
Authors: J.H. Kirkbride, Jr., C.R. Gunn, A.L. Weitzman, M.J. Dallwitz, K.R. Thiele
Content last updated April 2003
Released April 2024 on idtools.org
