The Kofans employ the bark of the root and the fruit in making 
curare. The plant is likewise used as a fish poison. 
Nothing is known of the chemistry of Schoenobiblus. 
LYTHRACEAE 
Cuphea sp. 
Known in Kofan as sivi, this small plant is burned, and the 
ashes are applied to treat sores of the mouth (H. V. Pinkley 37, 
cited in Pinkley: loc. cit.) 
LECYTHIDACEAE 
Chytroma validz Miers in Trans. Linn. Soc. 30 (1874) 241. 
CoLomBIA: Comisaria del Vaupés, Rio Vaupés, Cerro Mitu. “Flowers yellow- 
cream, fragrant.” September 27-October 30, 1966. R. E. Schultes, R. F. Raffauf 
et D. Soejarto 24250. 
All parts of this plant are alkaloid-negative with Dragendorff 
reagent. 
COMBRETACEAE 
Combretum Cacoucia Fxe// in Kew Bull. 1931 (1931) 469. 
BRAZIL: Estado do Para, Utinga, Belém. “Rabo de arara. Extensive liana. 
Acrid water in stem. Flowers red, said to be poisonous.” September 1947. R. E. 
Schultes 8668. 
Numerous reports, similar to the folk report from Belém do 
Para connected with this collection, state that the flowers of 
Combretum Cacoucia are toxic. There is apparently no chemical 
evidence to sustain this assertion, yet the number of reports is 
such that the problem bears serious study. 
Caffeine and tannins have been reported from the genus 
Combretum (Gibbs: loc. cit. 3 (1974) 1478). 
MELASTOMACEAE 
Graffenrieda rupestris Ducke in Arch. Inst. Bio. Veg. Rio 
Janeiro 2 (1935) 66. 
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