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
Synonyms:
Tounatea macrocarpa (Spruce ex Benth.) Taub., Tunatea macrocarpa (Spruce ex Benth.) Kuntze
Tounatea macrocarpa (Spruce ex Benth.) Taub., Tunatea macrocarpa (Spruce ex Benth.) Kuntze
Description:
Description - Tree to 5 m tall, the branchlets sparsely strigulose but early glabrescent; stipules foliaceous, deciduous, (3-)lG-20(-25) mm long, (2-)4-7 mm wide, falcate, elliptic to lanceolate or ovate, acuminate or acute, minutely strigulose sparingly on the outer surface, glabrous within, reticulate-venose; petioles canaliculate on the upper surface, stipellate apically, (2.5-)4-6 cm long, glabrous or sparingly strigulose and glabrescent; rachis glabrous or glabrescent, (7.5-)8.5-12 cm long, the upper surface flat or canaliculate, sometimes marginate, stipellate at each pair of leaflets; leaflets (2-) 3-jugate, the petiolules 2-3 mm long, glabrous or glabrescent, the blade elliptic, 9-21 (-26) cm long, 3-6(-8) cm wide, the base acute or narrowed but finally obtuse, the apex acute to acuminate, often mucronulate, glabrous or the veins minutely strigulose to varying degrees and glabrescent, the veins slightly salient on the upper surface, salient beneath; inflorescence (9.5-) 11 -23(-28) cm long, racemose or panicled-racemose, ramigerous or cauligerous, the axis minutely strigulose, the bracts deciduous to persistent, (1.5-)2-3.5 mm long, 1-2 mm wide, obtusely to acutely triangular or broadly ovate, minutely strigulose externally, glabrous within, the bracteoles usually not developed, rarely vestigial at the pedicel-apex; pedicels (10-) 15-18 mm long, minutely strigulose; buds subglobose to oval in outline, umbonate, 9-12 mm long, 7-8 mm diameter, minutely strigulose; calyx segments 3-4, deciduous, glabrous within, minutely strigulose on the outer surface; petal yellow, glabrous, the claw 3 mm long, the blade rounded, ca 15 mm diameter or oblate and 22-25 mm long, 26-30 mm wide; larger stamens 6, glabrous, the filaments 18 mm long, the anthers narrowly oblong, ca 5 mm long and 1-1.5 mm wide, the smaller stamens glabrous, the filaments 8-13.5 mm long, the anthers oblong, the apex subacute, 1.5 mm long, 0.5-0.7 mm wide; stigma capitellate; style 3.5-5 mm long, sparingly strigulose; ovary arcuate-linear, ca 7-13.5 mm long and 1-1.5 mm wide, sparsely strigulose, the gynophore 7-12 mm long; mature fruit not seen, immature ones narrowly moniliform.
Description - Tree to 5 m tall, the branchlets sparsely strigulose but early glabrescent; stipules foliaceous, deciduous, (3-)lG-20(-25) mm long, (2-)4-7 mm wide, falcate, elliptic to lanceolate or ovate, acuminate or acute, minutely strigulose sparingly on the outer surface, glabrous within, reticulate-venose; petioles canaliculate on the upper surface, stipellate apically, (2.5-)4-6 cm long, glabrous or sparingly strigulose and glabrescent; rachis glabrous or glabrescent, (7.5-)8.5-12 cm long, the upper surface flat or canaliculate, sometimes marginate, stipellate at each pair of leaflets; leaflets (2-) 3-jugate, the petiolules 2-3 mm long, glabrous or glabrescent, the blade elliptic, 9-21 (-26) cm long, 3-6(-8) cm wide, the base acute or narrowed but finally obtuse, the apex acute to acuminate, often mucronulate, glabrous or the veins minutely strigulose to varying degrees and glabrescent, the veins slightly salient on the upper surface, salient beneath; inflorescence (9.5-) 11 -23(-28) cm long, racemose or panicled-racemose, ramigerous or cauligerous, the axis minutely strigulose, the bracts deciduous to persistent, (1.5-)2-3.5 mm long, 1-2 mm wide, obtusely to acutely triangular or broadly ovate, minutely strigulose externally, glabrous within, the bracteoles usually not developed, rarely vestigial at the pedicel-apex; pedicels (10-) 15-18 mm long, minutely strigulose; buds subglobose to oval in outline, umbonate, 9-12 mm long, 7-8 mm diameter, minutely strigulose; calyx segments 3-4, deciduous, glabrous within, minutely strigulose on the outer surface; petal yellow, glabrous, the claw 3 mm long, the blade rounded, ca 15 mm diameter or oblate and 22-25 mm long, 26-30 mm wide; larger stamens 6, glabrous, the filaments 18 mm long, the anthers narrowly oblong, ca 5 mm long and 1-1.5 mm wide, the smaller stamens glabrous, the filaments 8-13.5 mm long, the anthers oblong, the apex subacute, 1.5 mm long, 0.5-0.7 mm wide; stigma capitellate; style 3.5-5 mm long, sparingly strigulose; ovary arcuate-linear, ca 7-13.5 mm long and 1-1.5 mm wide, sparsely strigulose, the gynophore 7-12 mm long; mature fruit not seen, immature ones narrowly moniliform.
Discussion:
Swartzia macrocarpa has a certain superficial resemblance to S. laurifolia and there is no closer relationship discernible at this point. Like S. fraterna, to which the present species is also related, S. macrocarpa has an almost glabrous gynoecium in contrast to the densely sericeous one of S. laurifolia. Swartzia macrocarpa differs from both its near relatives in form and number of pairs of leaflets and presence or absence of pubescence on the gynoecium.
Swartzia macrocarpa has a certain superficial resemblance to S. laurifolia and there is no closer relationship discernible at this point. Like S. fraterna, to which the present species is also related, S. macrocarpa has an almost glabrous gynoecium in contrast to the densely sericeous one of S. laurifolia. Swartzia macrocarpa differs from both its near relatives in form and number of pairs of leaflets and presence or absence of pubescence on the gynoecium.
Distribution:
Brazil South America| Amazonas Brazil South America|
Brazil South America| Amazonas Brazil South America|