173 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
outside, with a large chalaza, much albumen, and astraight embryo. Cotyledons folia- 
ceous, covering each other. 
Erect moncecious shrubs or trees reaching 17 meters high, with alternate, entire or 
serrate leaves and early deciduous stipules; the flowers odorous, of variable size, the 
staminate in few-flowered, axillary racemes, the pistillate almost solitary. Hairs 
always single. 
The seven species known to-day can be distinguished by means of the following key, 
the imperfection of which is unadvoidable, owing to the incomplete knowledge of 
these plants: 
KEY TO THE SPECIES. 
Flowers polygamous, rather large; sepals longer than the petals; a large 
tree, Brazil .......2..2--.-002-0-0-02-222000 020 eee eee C. brasiliensis. 
Flowers dioecious. 
Staminate flowers very large, petals almost 3 times as large as the 
sepals. Brazil........0 0002000000020 0 02 eee eee C. grandiflora. 
Staminate flowers small, petals only a little larger than the sepals. 
Sepals 3 or4.  Braziland Peru...........2............ ....-C. longifolia, 
Sepals 2. 
Capsules with long (2.5 to 3.5 em.) pedicels. Brazil....C. amazonica. 
Capsules with very short pedicels. 
Tree entirely glabrous; leaves serrate. Costa Rica. .C. glaucescens. 
Tree more or less pubescent, furfuraceous or hairy. 
Leaves sinuate-dentate; teeth acute; wings on the 
capsule 8. Costa Rica...............2222---- C'. platy plera. 
Leaves irregularly sinuate-dentate; teeth sub- 
spathulate: branchlets thick; wings on the cap- 
sule 10. Costa Rica ......2.2..2.222222 222 C. crassiramea, 
Carpotroche glaucescens Pittier, sp. nov. Figure /4,. 
A small tree 1.50 meters high, with few short branchlets, densely foliate toward 
the end. 
Leaves large, glaucous. Petioles 2 to 3 em. long, flattened on the upper side. Leaf 
blades 35 to 40 em. long, 10 to 13 em, broad, obovate, long-cuneate and narrowly 
rounded at base, sharply acuminate or seldom rounded at tip; glabrous, of a glaucous 
green color above, and paler beneath; margin sinuate-dentate near the base, dis- 
tinctly serrate toward the apex; stipules thick, 15 to 20 mm. long, acutely lanceolate, 
furfuraceous, caducous. 
Flowers unknown. 
Young fruits glaucous, 8 to 10 winged, with furfuraceous pedicels 1 cm. long, 2 per- 
sistent sepals about 12. mm. long, and 4 or 5 short styles. Seeds not known. 
Costa Rica: Grape Point, coast of Talamanca, H. Pittier, young fruit, Septem- 
ber, 1900 (Instituto fis.-geog. Costa Rica, no, 14089; type U. 8. National Herbarium, 
no. 577934). 
Differs from (. platyptera by its smaller size, its glaucous appearance, the form of 
the stipules, the indentation of the leaf, and the apparently variable number of the 
placentas and styles. 
Carpotroche platyptera Pittier, sp. nov. PLare XIX. Friaures 15, 16. 
A small tree 3 to 4 meters high, with few branches. Young shoots furfuraceous. 
Leaves petiolate, the young ones densely hairy on their whole surface. Petioles 
4 to5 cm. long, furfuraceous, thickening slightly from base to end. Fully developed 
leaf blades 35 to 49 cm. long, 10 to 14 em. broad, obovate-elliptic, cuneate, acuminate, 
smooth above except on the furfuraceous main nerve, hairy underneath, the midrib 
