224 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
ERYTHROXYLACEAE. 
Erythroxylum p. Br. 
E. HAVANENSE Jacq., Stirp. Am., p. 135, pi. 87, fig. 2 (1763). E. 
ovatum Cav., Diss., p. 404, pi. 233 (1789); Griseb., Fl. Brit. W. Ind., 
p. 113. — Santa Ana, Ernst; El Valle, River trail, Johnston, no. 72, 
Aug. 20. Slender tree, 5 m. high; flowers small, white. Further 
distribution, Dominica, Trinidad, Guiana, and Bahia. 
Stigmatophyllum Juss. 
S. SP. — Santa Ana, Ernst. 
ZYGOPHYLLACEAE. 
GUAJACUM L. 
G. ARBOREUM (Jacq.) DC, Prod., vol. 1, p. 707 (1824). Zygo- 
phyllum arboreum Jacq., Stirp. Am., p. 130, pi. 83 (1763). — Santa 
Ana, Ernst; El Valle, Miller & Johnston, no. 20, July 6; Johnston, 
no. 30, Aug. 8. Common on the road between Porlamar and Juan 
Griego byway of Asuncion. Further distribution, tropical America. 
G. OFFICINALE L'., Sp. pi., vol. 1, p. 381 (1753); Griseb., Fl. Brit. 
W. Ind , p. 134. — Pt. Mosquito, Johnston, no. 117, Aug. 10. Vene- 
zuela: Ernst, Sobre la flora y fauna, p. 226. Distribution general 
from Cuba to Venezuela. 
Kallstroemia Scop. 
K. MAXIMA (L.) Wight & Am., Prod., vol. 1, p. 145 (1834); Torr. 
& Gray, Fl. N. Amer., vol. 1, p. 213; Engl, in Mart., Fl. Bras., vol. 12, 
pt. 2, p. 71; Urb., Symb. Ant., vol. 4, p. 315. Tribulus maximus L., 
Sp. pi., vol. 1, p. 386 (1753).— El Valle, Miller & Johnston, no. 7, 
July 12; Juan Griego pond, Johnston, no. 292, Aug. 14. Venezuela: 
near Cumana, HBK., Nov. gen. et sp., vol. 6, p. 11. Further distri- 
bution, tropical America. 
Tribulus L. 
T. terrestris L., Sp. pi., vol. 1, p. 387 (1753), var. cistoides (L.) 
OHv., Fl. trop. Afr., vol. 1, p. 284 (1868); Urb., Symb. Ant., vol. 4, 
p. 315. T. cistoides L., Sp. pi., vol. 1, p. 387 (1753).— Santa Ana, 
