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:
Species Description - Small tree (1-)3-10 m tall, the branchlets glabrous; stipules minute, triangular; petioles 1.5-3.5(-6) cm long, terete, microscopically strigulose, the rachis (5.5-) 7.5-10 cm long, microscopically strigulose, terete; leaflets (1- or) 2-jugate, the petiolules 4-8 mm long, glabrous, the blades membranous to chartaceous, elliptic to oblong-elliptic, the lowest pair early deciduous, smaller, ca 14.5 cm long and 6.5 cm wide, the second pair 17-23 cm long, 6-11 cm wide, the terminal leaflet 22-27 cm long, 8-11 cm wide, the base of all the leaflets acute, the apex long-acuminate, glabrous except microscopically strigulose on the veins beneath, the venation plane and inconspicuous on the upper surface, the costa and primary veins salient beneath; inflorescence racemose, ramuligerous just beneath the current leaves, 8-15 cm long, the axis minutely strigulose, the bracts 0.3-0.5 mm long, triangular, the bracteoles lacking; pedicels 11-13 mm long, minutely strigulose; buds globose, ca 7 mm diameter, apiculate, glabrous; calyx segments 5, irregular, at least partially persistent with the mature fruits, glabrous; petal lacking; larger stamens several, glabrous, the filaments 15-20 mm long, the anthers oblong, 2-2.5 mm long, the smaller stamens glabrous, the filaments ca 8 mm long; gynoecium glabrous, the stigma capitellate, the style 4.5 mm long, the ovary ca 9.5 mm long and 1.5 mm wide, narrowly elliptic, the gynophore 6 mm long; fruits (submature) 16-18 cm long, ca 2 cm wide, moniliform, 1- or 2-seeded; immature seeds elongate-elliptic.
Species Description - Small tree (1-)3-10 m tall, the branchlets glabrous; stipules minute, triangular; petioles 1.5-3.5(-6) cm long, terete, microscopically strigulose, the rachis (5.5-) 7.5-10 cm long, microscopically strigulose, terete; leaflets (1- or) 2-jugate, the petiolules 4-8 mm long, glabrous, the blades membranous to chartaceous, elliptic to oblong-elliptic, the lowest pair early deciduous, smaller, ca 14.5 cm long and 6.5 cm wide, the second pair 17-23 cm long, 6-11 cm wide, the terminal leaflet 22-27 cm long, 8-11 cm wide, the base of all the leaflets acute, the apex long-acuminate, glabrous except microscopically strigulose on the veins beneath, the venation plane and inconspicuous on the upper surface, the costa and primary veins salient beneath; inflorescence racemose, ramuligerous just beneath the current leaves, 8-15 cm long, the axis minutely strigulose, the bracts 0.3-0.5 mm long, triangular, the bracteoles lacking; pedicels 11-13 mm long, minutely strigulose; buds globose, ca 7 mm diameter, apiculate, glabrous; calyx segments 5, irregular, at least partially persistent with the mature fruits, glabrous; petal lacking; larger stamens several, glabrous, the filaments 15-20 mm long, the anthers oblong, 2-2.5 mm long, the smaller stamens glabrous, the filaments ca 8 mm long; gynoecium glabrous, the stigma capitellate, the style 4.5 mm long, the ovary ca 9.5 mm long and 1.5 mm wide, narrowly elliptic, the gynophore 6 mm long; fruits (submature) 16-18 cm long, ca 2 cm wide, moniliform, 1- or 2-seeded; immature seeds elongate-elliptic.
Discussion:
The apetalous flowers of this species are distinctive in this part of the genus; although there are other apetalous species, they are not closely allied to S. nuda. The relationship of the latter is near the S. amplifolia- S. pinnata complex, as indicated by the moniliform fruit and the leaf morphology.
The apetalous flowers of this species are distinctive in this part of the genus; although there are other apetalous species, they are not closely allied to S. nuda. The relationship of the latter is near the S. amplifolia- S. pinnata complex, as indicated by the moniliform fruit and the leaf morphology.
Distribution:
Panama Central America| Bocas del Toro Panamá Central America|
Panama Central America| Bocas del Toro Panamá Central America|