228 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
about 10 cm. long and 0.8 cm. thick, densely filmy-hairy, the pedicels (1 to 
1.5 cm. long) and receptacle densely arachnoid-hairy; flowers all bound to- 
gether with a filmy tissue; perianth tubular, about 2 mm. long, the upper part 
thick and brownish ; apical pore very small; ovary ovoid-fusiform, attenuate at 
both ends; style very slender and short. 
Type in the U. S. National Herbarium, no. 678897, collected around Taber- 
nilla, Canal Zone, Panama, in old clearings, male flowers, July 6, 1911, by 
H. Pittier (no. 3823). The characters of the female inflorescence are drawn 
from Pittier 3825, from the same locality. 
Cecropia longipes is distinguished by having the longest peduncles in both 
male and female inflorescences of all the Isthmian species of Cecropia. It 
seems to be closely related to C. ruiziana. The female peduncles are much 
longer than in any other hitherto described species. 
Cecropia maxonii Pittier, sp. nov. 
A tree 10 tu 12 meters high, branched above, the younger shoots arachnoid, 
faintly canescent. 
Stipules brownish, sparsely covered with long appressed white hairs. Leaves 
coriaceous ; petiole multisulcate, minutely puberulous, 15 to 25 em. long, about 
8 mm. thick, the pulvinus brown, at first densely grayish-villous; leaf blades 
peltate, about 25 cm. in diameter, glabrous or roughly muricate-glandular 
above, canescent between the prominent, pilosulous cost and veins beneath, 
10-lobate, the lobes parted for from one-half to three-fourths of the distance 
from center to apex, acuminulate or obtuse, the margin entire-repand; large 
lobes 18 cm. long, 8 cm. broad; smaller lobes about 12 cm. long. 
Male inflorescences pedunculate, the peduncles 2 or 3 together in the axils, 
5 to 6 cm. long, thick, flattened, sparsely covered with minute white hairs. 
Spathe about 11.5 cm. long, contracted at the base, acute at the apex, dark- 
colored, very sparsely arachnoid-hairy. Aments 12 to 15 together, pedicellate, 
the pedicels glabrescent, 0.6 to 1 em. long. Flowers small, waxy; perianth 
golden yellow, tubular or turbinate, angulate, 1.2 to 1.5 mm. long, the upper 
part thicker, glabrous and lustrous, bilobulate, the lobules ciliate, parted by 
a narrow slit; staminal filaments connate at the base, compressed-fusiform, 
glabrous; anthers pale yellow, one exserted at a time. Female inflorescence 
not known. 
Type in the U. 8. National Herbarium, no. 675493, collected in the vicinity 
of Fl Boquete, Chiriquf, Panama, at an altitude of 1,000 to 1,200 meters, male 
flowers only, March 2 to 8, 1911, by William R. Maxon (no. 5182). 
This species is characterized by its very coarse and rather small leaves, as 
well as by the waxy appearance and yellow color of the male flowers. The 
whitish, glandlike excrescences of the upper face of the leaves may also be a 
constant and peculiar character. 
PROTEACEAE. 
THREE NEW SPECIES OF ROUPALA. 
Roupala darienensis Pittier, sp. nov. 
A tree 20 to 30 meters high, the young branchlets more or less fulvous-hairy 
at the base and around the insertion of the leaves, the axillary buds rufous- 
hairy. Leaves subcoriaceous, flat, distichous, the petioles slender, flattened 
above, submarginate, 3.5 cm. long, densely rusty or rufous-hairy above, the 
blades broadly ovate (on adult trees) to narrowly elliptic (on shoots and seed- 
lings), oblique or suboblique, ovate and abruptly attenuate or attenuate-cuneate 
at the base, short or long-acuminate at the apex, the acumen acute, 6 to 12 cm. 
long, 3 to 4.5 cm. broad, dark green and obscurely reticulate, the costa sub- 
