262 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
p. 65, pi. 45 (1763).— San Juan Mt., alt. 500 m., Johnston, no. 113, 
July 11. Further distribution, West Indies, Guiana to Brazil. A 
slender shrub, 0.5-1 m. high. 
Chiococca p. Br. 
C. MICRANTHA Johnston, Proc. Amer. acad. arts and sci., vol. 40, 
p. 696 (1905). — San Juan Mt., in woods above South Hill, alt. 400 
m., Johnston, no. 115, July 27. Endemic. Plate 29, figs. 3, 3a, 
3b, 3e. 
C. RACEMOSA Jacq., Hist. Stirp. Am., p. 68 (1763); Griseb., Fl. 
Brit. W. Ind., p. 336.— El Valle, Miller &• Johnston, no. 42, July 15, 
on bank of the River trail; Tacarigua, Johnston, no. 119, Aug. 15. 
Widely distributed in tropical America. 
Chomelia Jacq. 
C. SPiNOSA Jacq., Enum. pi. Carib., p. 12 (1760), & Hist. Stirp. 
Am., p. 18. — Santa Ana, Ernst. 
COUTAREA Aubl. 
0. hexandra (Jacq.), n. comb. Portlandia hexandra Jacq., Hist. 
Stirp. Am., p. 63, pi. 182, fig. 20 (1763). Coutarea speciosa Aubl., 
PL Guian., vol. 1, p. 314, pi. 122 (1775); Griseb., Fl. Brit. W. Ind., 
p. 323. — Santa Ana, Ernst. Widely distributed in tropical America. 
DiODIA L. 
D. RiGiDA (HBK.) Cham. & Schlecht., Linnaea, vol. 3, p. 341 
(1828); Griseb., Fl. Brit. W. Ind., p. 348. Spermacoce rigida HBK., 
Nov. gen. et sp., vol. 3, p. 342 (1818). — Santa Ana, Ernst. Further 
distribution, West Indies to Paraguay. 
Erithalis p. Br. 
E. FRUTicosA L., Syst. nat., ed. 10, vol. 2, p. 930 (1759); Griseb. 
Fl. Brit. W. Ind., p. 336. — Juan Griego, Ernst. Further distribu- 
tion, tropical America. 
GoNZALAGUNiA Ruiz & Pav. 
G. HiRSUTA (Jacq.) Schum. in Mart., Fl. Bras., vol. 6, pt. 6, p. 291 
(1889). Justicia hirsuta Jacq., Enum. pi. Carib., p. 11 (1760). 
