14 BRITTON: STUDIES OF WEST INDIAN PLANTS 
reticulate-veined, glabrous, and with impressed midvein above, 
strongly reticulate-veined, minutely scurfy and with prominent 
midvein beneath, the petioles 3-6 mm. long; staminate flowers 
racemose-spicate in the upper axils, the inflorescence 2—3 cm. long; 
bracts lanceolate, acute, about 1.5 mm. long; pedicels 1-2 mm. 
long; buds subglobose, lepidote, I mm. in diameter. 
Rocky banks and hillsides, mountains of northern Oriente. 
Type collected at Arroyo del Medio, above the falls, 450-550 m. 
alt. (Shafer 34066). 
Similar to L. revolutus, but the venation of the leavesi is quite 
different. In L. revolutus only the pistillate inflorescence is 
known; in L. saxicola only the staminate. 
5. Leucocroton angustifolius sp. nov. 
A much-branched, spreading shrub, about 6 dm. high, the 
twigs bearing distant leaf-scars. Leaves scattered, coriaceous, 
glabrous, linear or linear-oblong, 5-10 cm. long, 13 mm. wide or 
less, revolute-margined, rounded and mucronulate or emarginate 
at the apex, narrowed at the base, the midvein impressed above, 
prominent beneath, the primary lateral veins numerous, diverging 
at nearly right angles from the midvein, both surfaces reticulate- 
veined, the petioles 4-6 mm. long; pistillate flowers solitary at 
the ends of clustered, terminal, slender, scaly, bracted peduncles 
2-3 cm. long; bracts lanceolate, numerous, acute, ascending, 1.5 
mm. long; calyx-segments lanceolate, similar to the bracts; ovary 
depressed-globose, obtusely 3-lobed, lepidote; styles stout, re- 
curved. 
Rio Guayabo, above the falls, Oriente, 450-550 m. alt. (Shafer 
- 3626). 
6. Leucocroton (?) linearifolius sp. nov. 
A much-branched shrub about 6 dm. high, the twigs short, 
stiff, covered by leaf-scars. Leaves densely clustered at the ends 
of the twigs, coriaceous, glabrous, linear, 3-6 cm. long, 3-5 mm. 
wide, shining on both sides, emarginate at the apex, gradually 
narrowed to the base, short-petioled, the midvein impressed 
above, prominent beneath, the lateral veins very numerous and 
close together, prominent on both surfaces, diverging nearly at 
right angles to the midvein, simple, or forked; staminate flowers 
few, in short, solitary slender-peduncled racemes shorter than 
the leaves, the pedicels filiform, 2 mm. long, the bractlets linear- 
So bud of the staminate flower globose, 1 mm. in diameter. 
ocky bank of river at Camp La Barga, Oriente, 450 m. 
alt. ae 4144). 
