Subfamily: Caesalpinioideae.
Phylogenetic Number: 1.2.06.
Tribe: Cassieae.
Subtribe: Dialiinae.
Species Studied - Species in Genus: 2 studied; 3 in genus.
Fruit: A legumelegume:
usually dry, dehiscent fruit derived from a single carpel that opens along two longitudinal sutures
; unilocular; 3.5–7.5 cm long; 2.5–4.5 cm wide; 0.3–0.5 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, or straight; not plicate; not twisted; symmetrical, or asymmetrical; nearly circular, or oblong, or falcate (slightly); with both sutures parallelly curved; not inflated; flattened; without beak; tapered at apex; aligned with longitudinal axis of fruit; rounded at base; aligned with longitudinal axis of fruit; with the apex and base uniform in texture; coriaceous; seed chambers externally faintly visible; margin not constricted; margin without sulcus; margin embellished; margin with wing(s); wing(s) present; wing(s) 2; wing(s) 6–11 mm wide; wing(s) sutural; wing(s) on 1 suture (ventral); substipitate to nonstipitate; with all layers dehiscing; splitting along suture(s). Dehiscence of valves along 1 suture (dorsally); apical and down; passive. Replum invisible. Epicarp dull; monochrome; brown; with surface texture uniform; glabrous; eglandular; without spines; not smooth; with elevated features; veined; reticulately veined; not tuberculate; 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 reniform canals; fibrous throughout; coriaceous. Endocarp present; visible; dull; opaque; monochrome; tan; smooth; without adhering pieces of testa; partially subseptate; with septa composed of minute fringe of hairs; not exfoliating; remaining fused to mesocarp and epicarp; entire. Seed(s) 1–8; length transverse to fruit length; neither overlapping nor touching; in 1 series. Funiculus 0.1–6 mm long; of 1 length only; thick; once plicate. Aril absent.
Seed: 4.5–6 mm long; 4–5.5 mm wide; 2 mm thick; not overgrown; not angular; symmetrical; nearly ovate to circular; 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; dark reddish brown; glabrous; smooth, or not smooth; with recessed features, or elevated features; reticulate; cracked (with or without cracks); osseous. Pleurogram absent. Pseudopleurogram absent. Fracture lines present; reticulate. Rim absent. Wing(s) absent. Raphe not visible. Hilum present; fully concealed; concealed by funicular remnant; without faboid split; larger than punctiform; 0.1–0.6 mm long; with curved outline; elliptic; apical at apex of radicle tip; raised; not within corona, halo, or rim. Lens discernible; 0.1–1.5 mm long; with margins curved; elliptic; not in groove of raphe; 180 degrees from hilum (basal); recessed; same color as testa; not within corona, halo, or rim. Endosperm present; thick; not pluglike and not resembling tip of radicle; adnate to embryo (embryo small and oblique). 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; 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; parallel to length of seed (but, oblique when related to hilum); without a joint evident between the radicle and the cotyledons. Radicle differentiated from cotyledon; centered between cotyledons. Plumule rudimentary; glabrous.
New Caledonia and Fiji.
Old World; Pacific and Fiji (New Caledonia).