Chidlowia

Taxonomy

Chidlowia A.C. Hoyle Bull. Misc. Inform. 1932: 101. t. 1. 9 Apr 1932.

Subfamily: Caesalpinioideae.
Phylogenetic Number: 1.1.47.
Tribe: Caesalpinieae.
Group: Dimorphandra.
Species Studied - Species in Genus: 1 studied; 1 in genus.

Description

Fruit: A legume; unilocular; 30–46 cm long; 4.5–5.5 cm wide; 0.6–1.8 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; oblong to 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; active; with valves twisting. Replum invisible. Epicarp glossy, or dull (when older); monochrome; dark brown; with surface texture uniform; glabrous; eglandular; without spines; not smooth; with recessed features; veined; obliquely veined relative to fruit length; not tuberculate; not exfoliating; with cracks (minutely); cracking transverse to fruit length to oblique to fruit length; without embedded tissue, much thicker than epicarp, running from base to apex. Mesocarp present; surface not veined; 1-layered; without balsamic vesicles; without fibers; without reniform canals; solid; ligneous. Endocarp present; visible; dull; opaque; monochrome; tan; scurfy (between seeds), or smooth (when older); without adhering pieces of testa; subseptate; not exfoliating; remaining fused to mesocarp and epicarp; entire. Seed(s) 9–14; length transverse to fruit length; neither overlapping nor touching; in 1 series. Funiculus 0.1–4.5 mm long; of 1 length only; thick; straight. Aril absent.

Seed: 23–27 mm long; 19–21 mm wide; 4–5 mm thick; not overgrown; not angular; symmetrical; circular (subcircular); 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 recessed features; minutely pitted with small separate pits; coriaceous. 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; larger than punctiform; 2–4 mm long; with straight outline; linear; apical at apex of radicle tip; flush; not within corona, halo, or rim. Lens discernible; 1 mm long; with margins straight; oblong; not in groove of raphe; recessed; dissimilar color from testa; tan; not within corona, halo, or rim. Endosperm absent. 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; notched at radicle and split over radicle; 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.

Distribution