EUPHORBIACEAE 
Nealchornea yapurensis Huber in Bol. Mus. Goeldi 7 (1913) 297. 
COLOMBIA: Comisaria del Amazonas, Rio Loretoyacu, October 31, 1946. G. 
Black et R. E. Schultes 46-257. 
Comisaria del Amazonas, Rio Apaporis, Soratama. Flowers yellowish 
green. Flowers fragrant of lemon. Latex sparse, white. Flood-bank. Taiwano 
= bo-to-ka. July 31, 1951. R. E. Schultes et 1. Cabrera 13228. 
Comisaria del Vaupés, Rio |Papuri. Teresita. May 28, 1953. R. E. Schultes 
et 1. Cabrera 19469. 
The Taiwano Indians occasionally crush the leaves of this 
small tree for use as a fish poison. It is said to be very efficaceous 
and that it would be more extensively employed but for the 
scarcity of trees in the area. 
Phyllanthus piscatorum Humboldt, Bonpland et Kunth, Nov. 
Gen. et Sp. Pl. 2 (1817) 113. 
COLOMBIA: Comisaria del Putumayo, Rio Putumayo and vicinity. Kofan 
Indian name: ‘‘dzin-zi-a-pa’’. March 23-25, 1942. 
Comisaria del Amazonas, Rio Igaraparana, La Chorrera. June 6, 1942. R. 
E. Schultes 3898. 
This shrub is widely cultivated as a fish poison, for which use 
the leaves and branches are crushed and thrown into the water. 
The Witoto Indians of La Chorrera, however, employ a powder 
prepared from the dried leaves as an insect repellant, dusting it 
over the body at night before sleeping. 
ICACINACEAE 
Calatola columbiana S/eumer in Notizbl. Bot. Gart. Berlin 15 
(1940) 247. 
ECUADOR: Napo, Rio Aguarico, Durena. June 24, 1966. H. V. Pinkley 318. 
The leaves of Calatola columbiana are chewed by the Kofan 
Indians to blacken the teeth and lips. The Kofan name of this 
tree is ishoan-zi-hé. (Pinkley, H. V. The Ethnoecology of the 
Kofan Indians (1973) 240 Unpubl. Ph.D. Thesis, Harvard Uni- 
versity, Cambridge, Mass.). 
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