242 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
P. sp., reported by Ernst at Santa Ana, is probably the above. 
Rhipsalis Gaertn. 
R. CASSUTiLA. Gaertn., Fruct., vol. 1, p. 137, pi. 28 (1788); Griseb., 
Fl. Brit. W. Ind., p. 302 as cassytha. — • El Valle, Johnston, no. 16. 
Found hanging from the branches of trees; fruit becoming white. 
Further distribution, tropical America. 
THYMELAEACEAE. 
Daphnopsis INIart. & Zucc. 
D. americana (IMill.), n. comb. Laurus americana Mill., Diet., 
ed. 8, no. 10 (1768). Daphne tinifolia Sw., Prod. veg. Ind. Occ, 
p. 63 (1788). Daphnopsis tinifolia Griseb., Fl. Brit. W. Ind., p. 278 
(1860). — Juan Griego trail, alt. 450 m., Johnston, no. 257, Aug. 14. 
Further distribution, Jamaica. 
LYTHRACEAE. 
ROTALA L. 
R. DENTiFERA (Gray) Ivoehne in Engl., Bot. Jahrb., vol. 1, p. 161 
(1881). Ammannia dentifera Gray, PI. Wright., vol. 2, p. 55 (1853). 
— Juan Griego, Johnston, no. 276, Aug. 14. Further distribution, 
Mexico. 
RHIZOPHORACEAE. 
Rhizophora L. 
R. Mangle L., Sp. pL, vol. 1, p. 443 (1753); Griseb., Fl. Brit. W. 
Ind., p. 274. — Laguna Chica, Johnston, no. 246, Aug. 10, also at Pt. 
Piedras, and at Laguna Grande. Venezuela : Ernst, Sobre la flora y 
fauna, p. 223. Common to tropical countries. 
IVIYRTACEAE. 
Myrcia DC. 
M. CORIACEA (Vahl) DC, Prod., vol. 3, p. 243 (1828); Griseb., 
Fl. Brit. W. Ind., p. 234. Myrtus coriacea Vahl., S\'nib., vol. 2, p. 59 
(1791).— San Juan Mt., alt. 780 m., Johnston, no. 263, July 6. These 
