8 BRITTON: STUDIES OF WEsT INDIAN PLANTS—XII 
Glabrous throughout; ett Spee) at both 
ends or the apex very obtu 9. D. crassipes. 
Pubescent or someone textes acute or 
blunt ted. 
Leaves Setedas very bluntly pointed. 10. D. erythrandra. 
Leaves ovate. 
Peduncles and petioles puberulent ; leaves 
11. D. Roigit. 
Peduncles and petioles tomentulose or 
pubescent; leaves 3-5 cm. long 
eters tomentulose, ciliate; pedun- 
cle about as long as the petioles. 12. D. confusa. 
Receptacle puberulent; sc taaas much 
shorter than the petioles. 13. D. jamaicensis. 
1. DORSTENIA CONTRAYERVA L. Sp. Pl. 121. 1753 
Porto Rico; St. Martin; Guadeloupe; oo St. Vincent; 
Trinidad ; Mexico to Colombia and Per 
2. DORSTENIA CRENULATA C. Wright; Griseb. Mem. Ann. Acad. 
tL 8: 373... 3866 
Banks of rivulets, Monte Verde, Cuba, (Wright 1447). 
3. DoRSTENIA TUBEROSA C. Wright; Griseb. Mem. Ann. Acad. 
Ef, Sc 17%. 1800 
Mountains of northern Oriente, Cuba. 
4. Dorstenia Rocana Britton, sp. nov. 
tstock short. Petioles very slender, tomentulose, 5 cm. 
hes seks on banks of Cupeyales, Baas Sislataine. 
Santa Clara, Cuba (Brother Leon & Father Roca, 8092, August 
5, 1918). 
5. DoRSTENIA CORDIFOLIA Sw. Prodr. 31. 1788 
Central and western Jamaica. Recorded from Haiti. 
