202 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 



folium Jacq., Enum. pi. Carib., p. 29 (1760). — Juan Griego trail, 

 alt. 450 m., Johnston, no. 225, Aug. 12-15. Very abundant, growing 

 in clusters. Venezuela: Caracas, Ernst, Sobre la flora y fauna, p. 

 268. Distribution general from Cuba to Guiana and Peru. 



P. SP. affinis P. plati/cauli Rchb. f. — Juan Griego trail, alt. 600 m., 

 Johnston, no. 241, July 31. 



P. JoHNSTONii Ames, Orchidaceae, vol. 2, p. 271 (1908). — San 

 Juan Mt., alt. 600 m., Johnston, no. 238, July 16. Endemic. 



P. SP. San Juan Mt., Johnston, no. 237, July 16. 



P. SP. San Juan Mt., Johnston, no. 235, July 11. 



P. SP. San Juan Mt., Johnston, no. 234, July 11. 



PIPERACEAE. 

 Peperomia R. & P. 



P. GLABELLA (Sw.) A. Dictr., Sp. pi., vol. 1, p. 156 (1831); Griseb., 

 Fl. Brit. W. Ind., p. 165. Piper glabelhim Sw., Prod. veg. Ind. Occ, 

 p. 16 (1788).— Bat Cave Peak, El Valle, alt. 300 m., Johnston, no. 

 12, July 4. Further distribution, Trinidad, Antigua, and Jamaica. 



P. SCANDENS R. & P., Fl. Per., vol. 1, p. 32, pi. 51, fig. b (1798). 

 P. repens HBK., Nov. gen. et sp., vol. 1, p. 65 (1815); Griseb., Fl. 

 Brit. W. Ind., p. 165. — Santa Ana, Ernst (reported under the name 

 P. repens HBK.); Rio Asuncion, Johnston, no. 13, Aug. 12-15. 

 Abundant on the rocks of the rivulet. Widely distributed in tropical 

 America. 



P. viCTORiANA C. DC, var. margaritana C. DC, Proc. Amer. 

 acad. arts and sci., vol. 40, p. 685 (1905). — Bat Cave Peak, on the 

 cliffs, alt. 300 m., Johnston, no. 18, July 4. Endemic. 



Piper L. 



P. JoHNSTONi C DC, Proc. Amer. acad. arts and sci., vol. 40, p. 

 685 (1905). — Juan Griego trail, alt. 500 m., Johnston, no. 19, July 22. 

 Endemic. 



P. margaritanum C DC, Proc. Amer. acad. arts and sci., vol. 40, 

 p. 685 (1905).— El Valle, Miller & Johnston, no. 216, Aug. 5; San 

 Juan Mt., alt. 700 m., Johnston, no. 20, July 11. Endemic. 



P. PSEUDO-MOLLicoMUM C DC. in DC, Prod., vol. 17, pt. 1, p. 278 

 (1869). — Juan Griego trail, alt. 450 m., Johnston, no. 17, July 22. 

 Further distribution, Peru. 



