JOHNSTON: FLORA OF MARGARITA ISLAND. 269 



Synedrella Gaertn. 



S. NODiFLORA Gaertn., Fruct., vol. 2, p. 456, pi. 171 (1791); Griseb., 

 Fl. Brit. W. Ind., p. 377. — Santa Ana, Ernst. Distribution genera 

 in tropical America. 



Trixis p. Br. 



T. RADiALE (L.) Lag., Amen, nat., vol. 1, p. 36, in obs. (1811), 

 combination implied but not specifically made; Hook. f. & Jacks., 

 Ind. Kew., vol. 2, p. 1131 (1895). Perdicium radiale L., Sp. pi., ed.*2, 

 vol. 2, p. 1248 (1763). Trixis frutescens P. Br. ex Spreng., Syst., 

 vol. 3, p. 501 (1826); Griseb., Fl. Brit. W. Ind., p. 383; Ernst, Bot. 

 Excurs. Margarita, p. 6.— Santa Ana, Ernst; El Valle, Miller & 

 Johnston, no. 24, Aug. 1. Widely distributed in tropical America. 



Yerbesina L. 



V. ALATA L., Sp. pL, vol. 2, p. 901 (1753); Griseb., Fl. Brit. W. Ind., 

 p. 374; Sims., Bot. mag., pi. 1716. — Santa Ana, Ernst. Distribution 

 general in tropical America. 



Vernonia Schreb. 



V. ARBORESCENS (L.) Sw., Fl. Ind. Occ, vol. 3, p. 1320 (1806); 

 Griseb., Fl. Brit. W. Ind., p. 353; Plum., Ic. Burm., pi. 130, fig. 2. 

 Conyza arborescens Ij., Syst. nat., ed. 10, vol. 2, p. 1213 (1759). — San 

 Juan Mt., alt. 500 m., Johnston, no. 96, July 19. Flowers blue; 

 stem 2-3 m. high. Distribution general in tropical America. 



V. MiLLERi Johnston, Proc. Amer. acad. arts and sci., vol. 40, p. 

 698 (1905).— Summit of South Hill, alt. 300 m.. Miller & Johnston, 

 no. 254, July 31, and Johnston, no. 329, Aug. 31. Endemic. 



V. scoRPioiDES (Lam.) Pers., Syn., vol. 2, p. 404 (1807); Griseb., 

 Fl. Brit. W. Ind., p. 353. Conyza scorpioides Lam., Encycl., vol. 2, 

 p. 88 (1786).— El Valle, Miller & Johnston, nos. 133, 134, July; 

 Juan Griego trail, Johnston, nos. 322, 323, July. Venezuela: Cara- 

 cas, according to Seh. Bip., Linnaea, vol. 20, p. 510. Further dis- 

 tribution, Trinidad and tropical South America. 



Wedelia Jacq. 



W. buphthalmoides Griseb., Goett. Abh., vol. 7, p. 235 (1857). — 

 El Valle, Miller & Johnston, nos. 145, 146, and 147, July and Aug. 



