Stachyothyrsus

Taxonomy

Stachyothyrsus H.A.T. Harms In Engler et Prantl, Nat. Pflanzenfam. Nachtr. 1: 198. Oct 1897.

Subfamily: Caesalpinioideae.
Phylogenetic Number: 1.1.41.
Tribe: Caesalpinieae.
Group: Dimorphandra.
Species Studied - Species in Genus: 2 studied; 3 in genus.

Description

Fruit: A legumelegume:
usually dry, dehiscent fruit derived from a single carpel that opens along two longitudinal sutures
; unilocular; 14–23 cm long; 3–3.5 cm wide; 0.3–0.4 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; symmetrical, or asymmetrical; with 1 straight and 1 curved suture; widest near apex (stated as "oblanceolate" but also "with one margin straight"); not inflated; flattened; without beak; long tapered at apex; aligned with longitudinal axis of fruit; long tapered at base; slightly 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 embellished; margin with thickened sutural areas (ventral margin thickened, dorsal margin thin and curved); wing(s) absent; stipitate; with the stipe 6–30 mm long; with all layers dehiscing; splitting along suture(s). Dehiscence of valves along both sutures; active; with valves enrolling. Replum invisible. Epicarp dull; monochrome; blackish brown; with surface texture uniform; glabrous; eglandular; without spines; not smooth; with elevated features; not veined; not tuberculate; reticulately and transversely rugose; 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 fibers; without reniform canals; solid; ligneous. Endocarp present; visible; dull; opaque; monochrome; brown; without adhering pieces of testa; nonseptate; not exfoliating; remaining fused to mesocarp and epicarp; entire. Seed(s) 1–3; length oblique to fruit length; neither overlapping nor touching; in 1 series. Funiculus 0.1–1 mm long; of 1 length only; flattened (and broad); triangular. Aril absent.

Distribution

Sierre Leone to Zaire and Gabon.

Old World; Africa.