248 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
ASCLEPIADACEAE. 
ASCLEPIAS L. 
A. CURASSAVICA L., Sp. pi., vol. 1, p. 215 (1753); Griseb., Fl. Brit. 
W. Ind., p. 419; Desc, Ant., vol. 2, p. 191, pi. 116.— Santa Ana, 
Ernst; ¥,\Ya\le, Miller & Johnston, no. 84, July 11. Venezuela: near 
Cumana, HBK., Nov. gen. et sp., vol. 3, p. 190; Consejo, Fendler, no. 
1037, Mar. 13, 1855; Sacupana, Rusby & Squires, no. 26, April, 1896. 
Further distribution, tropical America. 
Calotropis R. Br. 
C. PROCERA (Willd.) Dryand. in Ait. f., tlort. Kew., ed. 2, vol. 2, p. 
78 (1811); Griseb., Fl. Brit. W. Ind., p. 420; Bot. reg., vol. 21, pi. 
1792. Asclepias procera Willd. Sp. pi., vol. 1, p. 1263 (1798).— 
Juan Griego, Ernst; El Valle, Miller & Johnston, no. 252, July 6. 
Venezuela: La Guaira, Fendler, no. 1053, Aug. 16, 1855. Common 
in tropical countries. 
DiTASSA R. Br. 
D. SUBULATA Johnston, Proc. Amer. acad. arts and sci., vol. 40, p. 
694 (1905). — San Juan IVIt., climbing over low shrubs at the summit, 
alt. 740 m., Johnston, no. 202, July 6. Endemic. 
Ibatia Dene. 
I. MARiTiMA (L.) Dene, in DC, Prod., vol. 8, p. 599 (1844). Cynan- 
chum maritimum L., Mant., p. 54 (1767); Jacq., Hist. Strip. Am., p. 
83, pi. 56. Ibatia muricata Griseb., Fl. Brit. W. Ind., p. 421 (1861).— 
Juan Griego, Ernst. Further distribution. West Indies, Venezuela. 
Marsdenia R. Br. 
M. MACULATA Hook., Bot. mag., pi. 4299 (1847); Griseb., Fl. Brit. 
W. Ind., p. 422.— El Valle, Miller & Johnston, no. 17, July 18, and 
Johnston, no. 67, Aug. 8. A vine hanging from trees. Further dis- 
tribution, Central America and Colombia. 
Metastelma R. Br. 
M. ScHLECTENDAHLii Dcne. in DC, Prod., vol. 8, p. 513 (1844); 
Griseb., Fl. Brit. W. Ind., p. 417.— El Valle, Miller & Jolmston, no. 
14, July 14. Venezuela: according to Ernst in Seem., Journ. bot., 
vol. 5, p. 294 (1867). Further distribution, tropical America. 
