Diplopteris involuta (Turcz.) Niedenzu in Pflanzenr., Heft 91, 4, 

 1 Fam. 141, pt. 1 (1928) 226. 



Peru: Departmento de Huanuco, Provincia de Pachitea. Bosque Nacional de 

 Iparia. Alt. 300 400 m. "Liana de 15 17 m. Flores amarillas con sepalos de 

 color pardo oscuro. Frutos immaturos. September 26, 1967. Schunke V. 2179. 



According to the collector, the local vernacular name of this 

 liana is ayahuasca negro. 



There is no evidence except the possible nomenclatural 

 intimation — that this species enters into the narcotic preparation 

 known in Peru as ayahuasca. It is possible, however, that this 

 species has, like Diplopteris Cabrerana (Cuatr.) Gates, trypta- 

 mine constituents (Schultes et Hofmann: The Botany and 

 Chemistry of Hallucinogens [Ed. 2] (1980) 175). 



SAPINDACEAE 



Paullinia rugosa Bentham ex Radlkofer, Monogr. Serjan. (1875) 

 75. 



Colombia: Comisaria del Vaupes, Rio Kuduyari, Savannah Yapoboda. Alt. c. 

 300 m. "Bejuco. Fruto rojo-sangre; arilo bianco. Semilla negra." June 23 25, 

 1958. Garcia- Barriga. Schultes et Blohm 16019. 



The Kubeo Indians of the Mitu region consider that the leaves 

 of Paullinia rugosa have emetic properties. 



STERCULIACEAE 

 Guazuma ulmifolia Lamarck, Encycl. 3 (1789) 52. 



Colombia: Comisaria del Amazonas, Rio Caqueta, La Pedrera. May 2, 1952. 

 Schultes et Cabrera J 6370. 



A gum from the fruit is valued in La Pedrera in the treatment 

 of sore throat and bronchial infections. 



Sterculia apetala (Jacq.) Karsten, Fl. Columb. 2 (1862) 35, t. 

 118. 



Colombia: Comisaria del Amazonas, Rio Loretoyaco. Alt. c. 100 m. 

 September 1946. Schultes et Black 8386. 



353 



