Storckiella

Taxonomy

Storckiella B.C. Seemann Bonplandia 9: 363. 15 Dec 1861.

Subfamily: Caesalpinioideae.
Phylogenetic Number: 1.2.06.
Tribe: Cassieae.
Subtribe: Dialiinae.
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; 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.

Distribution

New Caledonia and Fiji.

Old World; Pacific and Fiji (New Caledonia).

 Fruit and seed:  S. pancheri  Vieillard - bottom right dehisced fruit, bottom left seeds in situ;  S. vitiensis  B.C. Seemann - top fruit.
Fruit and seed: S. pancheri Vieillard - bottom right dehisced fruit, bottom left seeds in situ; S. vitiensis B.C. Seemann - top fruit.
 Seed, cotyledon, embryo, and testa:  S. pancheri  Vieillard - top far left cotyledon cordate and investing exposed radicle (L) and embryonic axis (R), top left center translucent endosperm with embryo in situ, bottom far left seed topography, bottom left center seeds, testa SEMs.
Seed, cotyledon, embryo, and testa: S. pancheri Vieillard - top far left cotyledon cordate and investing exposed radicle (L) and embryonic axis (R), top left center translucent endosperm with embryo in situ, bottom far left seed topography, bottom left center seeds, testa SEMs.