in the entire family of Malpighiads, always excepting 
that of the Caapi. Yet strong poisons may lurk undis- 
covered in many others of the order, which is very large 
.... (Spruce, R. [Ed. A.R. Wallace] ‘‘Notes of a 
Botanist on the Amazon and Andes”’ 2 (1908) 421-422). 
Banisteriopsis Martiniana (Juss.) Cuatrecasas 
var. laevis Cuatrecasas in Webbia 18 (1958) 502. 
Cotompia: Comisaria del Amazonas, Vaupés, Rio Apaporis, Raudal 
de Jirijirimo. H. Garcia-Barriga 13706.—Same locality. November 
25,1951. R.E. Schultes et I, Cabrera 14569, —Comisaria del Amazonas, 
Rio Apaporis, Soratama. August 20, 1951. Schultes et Cabrera 13615. 
Garcia- Barriga (Flora Medicinal de Colombia 2 (1975) 
69) has recently reported that Banisteriopsis Martiniana 
var. /aevis may be used by the Makuna Indians of the 
middle Apaporis as one source of the narcotic prepa- 
ration yajé. 
Heteropteris riparia Cuatrecasas in Webbia 13 
(1958) 483. 
Cotomsia : Comisaria del Putumayo, Rio Putumayo, Puerto Ospina. 
Alt. 300 m. ‘‘Extensive liana along river’s edge.’’ July 1942. R.E. 
Schultes 4029.—Comisaraia del Vaupés, Rio Apaporis, Raudal de 
Jirijirimo. Alt. 250 m. June 12, 1951. R.E. Schultes et I. Cabrera 
12428,—Comisaria de] Amazonas, Rio Apaporis, Soratama. June 18, 
1951. Schultes et Cabrera 12654.—Comisaria del Vaupés, Rio Apaporis, 
Jinogojé (near mouth of Rio Piraparana). Alt. 260 m. ‘Vine. Flowers 
yellow.’’ June 5, 1952. Schultes et Cabrera 16591.—Same locality. 
June 8, 1952. Schultes et Cabrera 16665. 
The bark of this extensive liana is reported in these 
widely separated localities to be extremely poisonous, 
but the Indians in the middle Apaporis rasp the bark 
and prepare a tea which is employed internally in the 
treatment of gonorrhoea. The Makuna name on the Rio 
Apaporis 1s mee-see-gaw. 
Saponins, tannins and phenolic acids have been re- 
ported from the genus Heteropteris (Gibbs, loc. cit. ). 
| 223. 
