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 - Tree with minutely strigulose branchlets; stipules minute, 0.3-0.4 mm long, persistent, oblong-triangular, minutely strigulose externally; petioles 12-18 mm long, terete, minutely strigulose; rachis 8-11 cm long, slender, terete, minutely strigulose; leaflets (2-)3- or 4-jugate, the petiolules 3.5-4 mm long, glabrous, the blades 6.5-11 cm long, 3-5 cm wide, elliptic, the base cuneate to rounded, always acute at the petiolule, the apex bluntly acute to bluntly acuminate, the upper surface glabrous, shining, darker than the sparingly minuto-strigulose undersurface, the costa and primary veins plane above, the costa salient beneath but the primaries only slightly so; inflorescences a panicle of racemes, 5-8.5 cm long, the axes minutely strigulose, the bracts persistent, triangular, acute, ca 1 mm long and wide, the bracteoles persistent, triangular, arising in the upper half of the pedicels, ca 0.5 mm long, minutely strigulose externally; pedicels 4-5 mm long, minutely strigulose; buds globose, 4-5 mm diameter; calyx segments deciduous, glabrous; petal pale yellow, glabrous, the claw 2 mm long, the blade rounded, 5-6 mm long and wide, truncate basally; larger stamens 3 or 4, glabrous, the filaments ca 5 mm long, the anthers 1 mm long, oval, the smaller stamens glabrous, ca 5 mm long; gynoecium glabrous, the stigma punctiform, the style 0.4 mm long, the ovary ca 3 mm long and 1 mm wide, elliptic, the gynophore ca 4 mm long; fruit (mature?) oval to almost circular, 23-27 mm long, 17-22 mm wide, strongly compressed, 1-seeded, the aril white.
Description - Tree with minutely strigulose branchlets; stipules minute, 0.3-0.4 mm long, persistent, oblong-triangular, minutely strigulose externally; petioles 12-18 mm long, terete, minutely strigulose; rachis 8-11 cm long, slender, terete, minutely strigulose; leaflets (2-)3- or 4-jugate, the petiolules 3.5-4 mm long, glabrous, the blades 6.5-11 cm long, 3-5 cm wide, elliptic, the base cuneate to rounded, always acute at the petiolule, the apex bluntly acute to bluntly acuminate, the upper surface glabrous, shining, darker than the sparingly minuto-strigulose undersurface, the costa and primary veins plane above, the costa salient beneath but the primaries only slightly so; inflorescences a panicle of racemes, 5-8.5 cm long, the axes minutely strigulose, the bracts persistent, triangular, acute, ca 1 mm long and wide, the bracteoles persistent, triangular, arising in the upper half of the pedicels, ca 0.5 mm long, minutely strigulose externally; pedicels 4-5 mm long, minutely strigulose; buds globose, 4-5 mm diameter; calyx segments deciduous, glabrous; petal pale yellow, glabrous, the claw 2 mm long, the blade rounded, 5-6 mm long and wide, truncate basally; larger stamens 3 or 4, glabrous, the filaments ca 5 mm long, the anthers 1 mm long, oval, the smaller stamens glabrous, ca 5 mm long; gynoecium glabrous, the stigma punctiform, the style 0.4 mm long, the ovary ca 3 mm long and 1 mm wide, elliptic, the gynophore ca 4 mm long; fruit (mature?) oval to almost circular, 23-27 mm long, 17-22 mm wide, strongly compressed, 1-seeded, the aril white.
Discussion:
The relationship of this species to S. recurva is unquestionable, especially in light of the fruit type which is peculiar to this small complex of species. It differs from S. recurva by the lack of pubescence on the inner calyx-surfaces and by the minute, nonfoliaceous stipules and bracts. From S. krukovii, another relative, it differs in leaflet shape, lack of pubescence on the buds, and by its relatively shorter gynophore. Also S. discocarpa is rather intimately related to S. cuspidata, but the latter has leaflets of different shape, fruits of much different form, and a much longer style.
The relationship of this species to S. recurva is unquestionable, especially in light of the fruit type which is peculiar to this small complex of species. It differs from S. recurva by the lack of pubescence on the inner calyx-surfaces and by the minute, nonfoliaceous stipules and bracts. From S. krukovii, another relative, it differs in leaflet shape, lack of pubescence on the buds, and by its relatively shorter gynophore. Also S. discocarpa is rather intimately related to S. cuspidata, but the latter has leaflets of different shape, fruits of much different form, and a much longer style.
Distribution:
Brazil South America| Pará Brazil South America|
Brazil South America| Pará Brazil South America|