124 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
glabrous, reticulate, dark green above, paler or almost glaucous beneath, the 
venation prominent on both faces. 
Racemes simple, 10 to 15 cm. long, growing from the axils of the upper 
leaves, the rachis more or less rufous-pubescent. Flowers very large for the 
genus, solitary, geminate, or 3 or 4-fasciculate 
along the rachis; pedicels slender, 1 to 15 
cm. long, rufous-pubescent, provided above 
the middle with 2. very small, alternate, 
hairy bractlets. Calyx turbinate-campanulate, 
oblique, 8 to 10 mm. long, minutely rufous- 
pubescent, persistent, the lobes rounded-obtuse. 
Petals glabrous, yellow with dark purple veins; 
standard reflexed, the claw rather narrow, 4 
mm, long, the blade suborbicular, more or less 
distinctly emarginate at the broadly rounded 
apex, about 12 mm. long, 17 mm. broad; wings 
free, the claw slender, 5 to 6 mm, long, the 
Fic, 61.—Petals of Pterocarpus blade ovate, 12 mm. long, 8.5 mm, broad; carinal 
heterophyllus, a, Standard; petals cohering along the lower margin, the claw 
b, wings; ¢, carinal petals. py out 5.5 mm. long, the blade oblique-obovate, 
Natural size. From type _ 
specimen, about 10 mm. long, 5.5 mm. broad. Stamens 
monadelphous, the free part of the fila- 
ments very short, the anthers ovate, dark brown. Ovary long-stipitate, 
o or 6-ovulate, rufous-villous, the style glabrous, slender, about 8 mm. 
long. 
Legume orbicular, stipitate, 1-seeded, more or less pubescent or glabrescent, 
reticulate, 5 to 5.5 em, in diameter, Seed (immature?) obovate-elliptic, com- 
pressed, 7 mm. long, 3.5 mm. broad. 
Type in the U. S. National Herbarium, no, 703743, collected in Santa Marta, 
Colombia, 1898-9, by H. H. Smith (no, 16). 
This differs obviously from the other Pterocarpus species known from the same 
region in the shape of the leaflets and the size of the flowers. The staminal 
tube is often split into two parts as the ovary grows, the stamens thus becoming 
apparently isadelphous. The type specimen shows a wide variation in the 
size of the leaflets, but it is likely that taken all together and full grown on a 
whole tree, they would show more or less decidedly the larger dimensions 
indicated above. 
AN OLD AND A NEW SPECIES OF PLATYMISCIUM. 
Platymiscium polystachyum Benth. in Seem. Bot. Voy. Herald 111. pl. 27. 1853. 
A middle-sized or large tree, forking low, with a rounded crown. Bark of the 
trunk grayish and rough, that of the branchlets brownish gray, densely dotted 
with minute lenticels, 
Leaves opposite or ternate, imparipinnate, 3 or 5-foliolate, glabrous; leaflets 
opposite, short-petiolulate, coriaceous. Leaflet blades ovate, rounded at the base, 
5 to 22 em. long, 2 to 10 cm. broad, more or less abruptly narrowed at the apex 
into an obtuse acumen, finely reticulate, light green and shining above, paler 
beneath ; costa and primary veins prominent beneath. Stipules orbicular-obtuse, 
caducous. 
Racemes simple, 7.5 to 10 cm. long, glabrous, geminate or rarely solitary in 
the defoliate axils of last year’s growth, appearing before the new leaves; 
rachis (peduncle included) 15 to 20 em. long. Flowers numerous, 13 to 14 
