JOHNSTON: FLORA OF MARGARITA ISLAND. 241 
CACTACEAE. 
Cereus Mill. 
C. cariPensis (HBK.) DC., Prod., vol. 3, p. 467 (1828). Cactus 
caripensis HBK., Nov. gen. et. sp., vol. 6, p. 66 (1823).— South Hill, 
El Valle, alt. 300 m., Johnston, no. 217, July 18. Further distribu- 
tion, Mexico. 
C. EBURNEUS Salm-Dyck, Obs. bot., p. 6 (1822).— El Valle, John- 
ston, no. 342, July 27. Further distribution, Curagoa and Chili. 
C. Jamacaru DC., Prod., vol. 3, p. 467 (1828).— Tacarigua, 
Johnston, no. 341, Aug. 15. Further distribution, Brazil. 
C. MARGARITENSIS Johnston, Proc. Amer. acad. arts and sci., vol. 
40, p. 693 (1905).— E] Valle, on the hillside, Johnston, no. 344, July 
27. Endemic. 
C. Swarrzu Griseb., Fl. Brit. W. Ind., p. 304 (1860).— Santa Ana, 
Ernst. Found also in Jamaica. 
MammiLiaria Haw. 
M. smmpiex Haw., Syn. pl. succ., p. 177 (1812); Griseb., Fl. Brit. 
W. Ind. p. 300.— Juan Griego, Ernst. Further distribution, Haiti 
and Venezuela. 
Mexocactus Link & Otto. 
M. communis Link & Otto in Verh. preuss. Ver.”Gartenb., vol. 3, 
p. 417, pl. 11 (1827); Griseb., Fl. Brit. W. Ind., p. 300.— Juan 
Griego, Ernst; El Valle, plain by sea, Miller & Johnston, no. 272, 
Aug. 3; Pt. Moreno, Johnston, no. 343, Aug. 10. Further distribu- 
tion, West Indies. 
Opuntia Mill. 
O. LEpTocauLis DC. in Mém. mus. Par., vol. 17, p. 118 (1828).— 
En route El Valle to San Antonio, Johnston, no. 340, Aug. 3. Further 
distribution, Mexico. 
O. Tuna Mill., Gard. dict., ed. 8, no. 3 (1768); Griseb., Fl. Brit. 
W. Ind., p. 302.— Common everywhere on the plains and hillsides. 
E] Valle, Johnston, no. 218, July 4. Common in tropical America. 
Peresxia Mill. 
OPUNTIAEFLO ce Coan Peet mate, Fer, vol: 17, p.'76, p. 
ee (1998). — Pt. Mecaas Johnston, no. 216. Further distribution, 
Mexico. 
