228 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
A. ERUBESCENS Jolinstoii, Proc. Amer. acad. arts and sci., vol. 40, p. 
689 (1905).— El Valle, Miller & Johnston, no. 213, July 22; Johnston, 
no. 58, Aug. 21. Endemic. Plate 30, figs. 4, 4a-c, 5, 5a-c. 
Croton L. 
C. CHAMAEDRiFOLius Lam., Encycl., vol. 2, p. 215 (1786); Griseb., 
Fl. Brit. W. Ind., p. 41; Muell. Arg. in Mart., Fl. Bras., vol. 11, pt. 
2, p. 271; Desc, Ant., vol. 7, p. 491. — Santa Ana, Ernst. Further 
distribution, West Indies, Panama, Guiana. 
C. FLAVENS L., Syst. nat., ed. 10, vol. 2, p. 1276 (1759), and PI. Jam. 
Pugill., p. 28; Griseb., Fl. Brit. W. Ind., p. 38.— El Valle, MiUer & 
Johnston, no. 38, July 15; Johnston, no. 45, Aug. 8. Further dis- 
tribution, Jamaica, Trinidad, St. Thomas. 
C. GLANDULOSUS L., Syst. nat., ed. 10, vol. 2, p. 1275 (1759); 
Griseb., Fl. Brit. W. Ind., p. 41; Muell. Arg. in Mart., Fl. Bras., 
vol. 11, pt. 2, p. 267; Jacq., Ic, vol. 1, p. 104; Urb., Symb. Ant., 
vol. 4, p. 343.— Hillside, El Valle, MiUcr & Johnston, no. 5, July 11. 
Further distribution, temperate and tropical America. 
C. HELicoiDEUs IMuell. Arg., Linnaea, vol. 34, p. 97 (1865-66). — • 
El Valle, Miller & Johnston, no. 232, July 30; Johnston, no. 339, 
Aug. 8. Found also in St. Vincent. 
C. LOBATUS L., Sp. pi., vol. 2, p. 1005 (1753); Griseb., Fl. Brit. W. 
Ind., p. 42; Muell. Arg. in Mart., Fl. Bras., vol. 11, pt. 2, p. 237; 
Urb., S}TOb. Ant., vol. 4, p. 343.— Santa Ana, Ernst; El Valle, Miller 
& Johnston, no. 120, July 16. Venezuela: near Bordones, HBK., 
Nov. gen. et sp., vol. 2, p. 90. Distribution general in tropical 
America. 
C. MARGARiTENSis Johnston, Proc. Amer. acad. arts and sci., vol. 
40, p. 689 (1905). — Among shrubs near summit of San Juan Mt., 
alt. 700 m., Johnston, no. 50, Aug. 28. Endemic. Plate 30, figs. 3 
and 3a. 
C. MiLLERi Johnston, Proc. Amer. acad. arts and sci., vol. 40, p. 690 
(1905).— El Valle, Miller & Johnston, no. 229, July 18; Johnston, 
no. 48, Aug. 10. Common on the plains between El Valle and Pt. 
Mosquito. Endemic. Plate 30, figs. 2, 2a-d. 
C. NiVEUS Jacq., Enum. pi. Carib., p. 32 (1760); Griseb., Fl. Brit. 
W. Ind., p. 40. — Santa Ana, Ernst; El Valle, Miller & Johnston, no. 
107, July 20. Further distribution, Jamaica, Dominica, Colombia. 
C. ovALiFOLius Vahl in West, Bidr. Ste. Croix, j). 307 (1793); 
