BRITTON: CUBAN PLANTS New To SCIENCE 71 
ovate ; corolla pink; wings 2-2.5 cm. long, the standard 1-1. 5 cm. 
broad; legume linear, 4-6 cm. long, 3 mm. broad, appressed- 
puberulent ; seeds 2.5 mm. long, 1.5 mm. broad. 
Savannas, pine lands and palm barrens, Camaguey, Santa 
Clara, Matanzas, Pinar del Rio and Isle of Pines. Type from 
Herradura, Pinar del Rio (Earle 632). 
Family ERYTHROXYLACEAE 
Erythroxylon Roigii Britton & Wilson, sp. nov. 
A glabrous shrub, 2-2.5 m. high, with slender twigs. Leaves 
elliptic, 5-7 cm. long, 2-3.5 cm. wide, obtuse and short-apiculate 
at the apex, acute at the base, sub-coriaceous, greenish-brown, 
lustrous and rather obscurely reticulate-veined above, rusty- 
brown and reticulate-veined beneath; petioles slender, 7 mm. 
long ; drupes ellipsoid, 11-13 mm. long, 4.5-5 mm. thick. 
Type collected at Caleta Grande, Isle of Pines (Roig & Cre- 
mata 1856). 
Erythroxylon coriaceum Britton & Wilson, sp. nov. 
A small tree, 5-7 m. high, with rather stiff gray branches. 
Leaves elliptic-obovate to obovate, 2.5-5.5 cm. long, 1.5-3.4 cm. 
broad, rounded and often emarginate at the apex, obtuse or some- 
what acute at the base, coriaceous, indistinctly veined, dark 
green above, paler beneath, the margin revolute; petioles 5-7 
mm. long; stipules triangular, 2-3 mm. long; buds several together 
in the axils, on short pedicels; calyx-lobes ovate, acute; drupes 
(undeveloped?) narrowly oblong, about 1 cm. long, orange-red. 
Type collected. on bank of Rio Guayabo, above the falls, 
Oriente (Shafer 3601). 
Family BURSERACEAE 
Elaphrium Shaferi Britton & Wilson, sp. nov. 
A glabrous tree 6 m. in height; bark of the trunk reddish- 
brown, easily peeling off in thin sheets; branches brown; leaves 
simple, narrowly deltoid-lanceolate, 4-8 cm. long, 1-1.8 mm. 
broad at the base, acuminate at the apex, rounded and cordate 
at the base, reticulate-veined above, the lateral veins nearly at 
right angles to the midvein; reticulate-veined beneath; petioles 
slender, I-1.5 cm. long; inflorescence about 1-1.5 cm. long; 
drupes obovoid, 6.5-7 mm. long, 5 mm. broad. 
E i. 
