Subfamily: Caesalpinioideae.
Phylogenetic Number: 1.1.16.
Tribe: Caesalpinieae.
Group: Peltophorum.
Species Studied - Species in Genus: 1 studied; 4 in genus.
Fruit: A legume; unilocular; 15–19(–20) cm long; 0.5–1 cm wide; 0.2–0.3 cm thick; more than 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; symmetrical; linear; not inflated; compressed; without beak; long tapered at apex; aligned with longitudinal axis of fruit; tapered at base; aligned 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; substipitate; with all layers dehiscing; splitting along suture(s). Dehiscence of valves along both sutures; apical and down and basal and up; active (?); with valves revolute (?). Replum invisible. Epicarp dull; multicolored; bichrome; blackish brown margins & reddish brown (faces); with surface texture uniform; glabrate to pubescent and indurate (golden or whitish); with hairs erect; with simple hairs; eglandular; without spines; smooth; not veined; not tuberculate; not exfoliating; without cracks; without embedded tissue, much thicker than epicarp, running from base to apex. Mesocarp present; surface not veined; 2-layered; without balsamic vesicles; without fibers; without reniform canals; with solid layer over spongy layer; 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) 2, or 10; length oblique to fruit length; neither overlapping nor touching; in 1 series. Funiculus 0.1–1 mm long; of 1 length only; thick; triangular (?). Aril absent.
Seed: 8.5–10 mm long; 4–5.3 mm wide; 2 mm thick; not overgrown; angular, or not angular; symmetrical; oblong to rhombic; 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; monochrome; reddish brown; glabrous; not smooth; with elevated features; rugose; coriaceous. Pleurogram absent. Pseudopleurogram absent. Fracture lines absent. Rim absent. Wing(s) absent. Raphe visible. Hilum present; fully concealed; concealed by funicular remnant; without faboid split; punctiform; apical at apex of radicle tip; flush; not within corona, halo, or rim. Lens not discernible. Endosperm present; thick; not pluglike and not resembling tip of radicle; adnate to embryo. 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 touching (auriculate), or not touching; without basal groin formed by lobes; 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; without a joint evident between the radicle and the cotyledons. Radicle differentiated from cotyledon; centered between cotyledons. Plumule rudimentary; glabrous.
Seeds of J. purpurea may be polyembryonic. Jacqueshuberia was monographed by da Silva and Graham (l980). A new species was named by Cowan (1985). The two species in the Brazilian Amazon were reviewed by da Silva and Carreira (1994).
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
