Monographs Details:
Authority:
Cowan, Richard S. 1967. Swartzia (Leguminosae, Caesalpinioideae Swartzieae). Fl. Neotrop. Monogr. 1: 3-228. (Published by NYBG Press)
Cowan, Richard S. 1967. Swartzia (Leguminosae, Caesalpinioideae Swartzieae). Fl. Neotrop. Monogr. 1: 3-228. (Published by NYBG Press)
Family:
Fabaceae
Fabaceae
Description:
Description - Probably a small tree, the branchlets densely tomentose with tawny nigrescent hairs; stipules persistent, more or less rigidly coriaceous, 5-7 mm long, ca 0.5 mm wide, densely tomentose externally, glabrous within; petioles terete, 12-18 mm long, densely tomentose; rachis 2-3.5 cm long, terete, estipellate, densely tomentose; leaflets 1- or 2-jugate, the petiolules 4-7 mm long, densely tomentose, the blades rigid-coriaceous, 8-10 cm long, 3-4 cm wide, elliptic to narrowly ovate, the base cuneate, the apex acuminate, the upper surface nitid and glabrous, densely subappressed pilose, the costa impressed but the primary veins slightly salient on the upper surface, both costa and the primaries salient beneath; inflorescence an axillary, sparsely branched panicle of racemes, 8-10 cm long, the axis 5-11.5 cm long, densely tomentose, the bracts caducous, 4-6 mm long, ca 1.5 mm wide, oblong-lanceolate, tomentose externally, the bracteoles persistent, ca 3.5 mm long and 1 mm wide, linear-lanceolate, densely tomentose externally; pedicels 10-16 mm long, densely tomentose; buds oval in outline, densely tomentose, 13-15 mm long, 10-12 mm diameter; calyx segments 4, tomentose externally, glabrous within; petal with a claw 4-5 mm long, villose externally, the blade ca 25 mm long and 30 mm wide, oblate, the base cordate, long-villose on the basal-central portion externally, glabrous within; larger stamens ca 11, the filaments 10-15 mm long, glabrous, the anthers 2 mm long, 1 mm wide, oblong, glabrous, the smaller stamens glabrous, the filaments 10 mm long, the anthers oblong, 1.5 mm long and 1 mm wide; gynoecium glabrous, the stigma obtuse, the style 1.5-2 mm long, the ovary arcuate-oblong, 8-9.5 mm long, 4-4.5 mm wide, the gynophore 6-10 mm long; fruit not seen.
Description - Probably a small tree, the branchlets densely tomentose with tawny nigrescent hairs; stipules persistent, more or less rigidly coriaceous, 5-7 mm long, ca 0.5 mm wide, densely tomentose externally, glabrous within; petioles terete, 12-18 mm long, densely tomentose; rachis 2-3.5 cm long, terete, estipellate, densely tomentose; leaflets 1- or 2-jugate, the petiolules 4-7 mm long, densely tomentose, the blades rigid-coriaceous, 8-10 cm long, 3-4 cm wide, elliptic to narrowly ovate, the base cuneate, the apex acuminate, the upper surface nitid and glabrous, densely subappressed pilose, the costa impressed but the primary veins slightly salient on the upper surface, both costa and the primaries salient beneath; inflorescence an axillary, sparsely branched panicle of racemes, 8-10 cm long, the axis 5-11.5 cm long, densely tomentose, the bracts caducous, 4-6 mm long, ca 1.5 mm wide, oblong-lanceolate, tomentose externally, the bracteoles persistent, ca 3.5 mm long and 1 mm wide, linear-lanceolate, densely tomentose externally; pedicels 10-16 mm long, densely tomentose; buds oval in outline, densely tomentose, 13-15 mm long, 10-12 mm diameter; calyx segments 4, tomentose externally, glabrous within; petal with a claw 4-5 mm long, villose externally, the blade ca 25 mm long and 30 mm wide, oblate, the base cordate, long-villose on the basal-central portion externally, glabrous within; larger stamens ca 11, the filaments 10-15 mm long, glabrous, the anthers 2 mm long, 1 mm wide, oblong, glabrous, the smaller stamens glabrous, the filaments 10 mm long, the anthers oblong, 1.5 mm long and 1 mm wide; gynoecium glabrous, the stigma obtuse, the style 1.5-2 mm long, the ovary arcuate-oblong, 8-9.5 mm long, 4-4.5 mm wide, the gynophore 6-10 mm long; fruit not seen.
Discussion:
This is one of the most distinct, easily recognized species in the section; the densely tomentose vegetative and inflorescence parts, the terete petiole and rachis, the branched inflorescence, and the large number of larger stamens are distinguishing characteristics which separate it from its probable nearest relative, S. brachyrachis. Sandwith related it to S. oblonga, a unifoliolate species related also, indirectly, to S. brachyrachis.
This is one of the most distinct, easily recognized species in the section; the densely tomentose vegetative and inflorescence parts, the terete petiole and rachis, the branched inflorescence, and the large number of larger stamens are distinguishing characteristics which separate it from its probable nearest relative, S. brachyrachis. Sandwith related it to S. oblonga, a unifoliolate species related also, indirectly, to S. brachyrachis.
Distribution:
Venezuela South America|
Venezuela South America|