GENTIANACEAE 
Chelonanthus alatus (Willd. ex Griseb.) Pulle, Enum. PI. 
Surinam. (1906) 376. 
COLOMBIA: Comisaria del Vaupés, Rio Vaupés, Cerro de Mitu. “Height 5 feet. 
Flowers yellow-green.” September 27—October 20, 1966. R. E. Schultes, R. F. 
Raffauf et D. Soejarto 24346. 
This species is alkaloid-negative with Dragendorff reagent. 
The Kubeo Indians take a tea of the roots and leaves to relieve a 
stomach condition caused apparently by eating tainted meat or 
fish. 
APOCYNACEAE 
Aspidosperma Schultesii Woodson in Ann. Mo. Bot. Gard. 38 
(1951) 168. 
COLoMBIA: Comisaria del Vaupés, Rio Apaporis, Jinogojé (at mouth of Rio 
Piraparana) and vicinity. “Large tree.” July 1952. R. E. Schultes et I. Cabrera 
19786. 
The latex of Aspidosperma Schultesii is valued amongst the 
Makuna and other Indians of the middle course of the Rio 
Apaporis and the Rio Piraparana in the treatment of infected 
sores (possibly of fungal origin) between the toes. It is spread over 
the raw flesh and dried, acting as a protection to the wound. 
A summary of the known chemical constitution of the genus 
Aspidosperma may be found in Schultes: Journ. Ethnopharm. | 
(1979) 167. 
Tabernaemontana stenoloba Muveller- Argoviensis in Linnaea 30 
(1859-60) 407. 
COLOMBIA: Comisaria del Amazonas, Rio Caqueta, La Pedrera. October 3, 
1952. R. E. Schultes et I. Cabrera 17690. 
Natives in the region of La Pedrera maintain that latex in the 
leaves of this plant is toxic to the skin. 
For a brief summary of the organic constituents in 
Tabernaemontana, see Schultes: loc. cit. 1 (1979) 184. 
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