Pinkley 16. — Same locality. ‘‘Small tree, 6-8 feet.”’ October 19, 
1966. H.V. Pinkley 522. 
The bark of the root of this treelet is an ingredient of curare 
amongst the Kofans. The Kofan name is ko-yo-vi-fd-nti. 
Cyanogenesis is reported from a Philippine species of 
Anaxagorea (Hegnauer, R.: Chemotaxonomie der Pflanzen 
3( 1964) 121) 
Guatteria Duckeana R.E. Fries in Acta Horti Berg. 12 (1939) 
468. 
COLOMBIA: Comisaria del Vaupes, Rio Vaupes, Cachivera de Tatu. **Tree 
45 feet. Flowers green.’ October 20, 1966. R.E. Schultes, R.F. 
Raffauf et D. Soejarto 24377. 
All parts of this plant tested very positive for alkaloids with 
Dragendorff reagent. 
Guatteria dura R.E. Fries in Acta Horti Berg. 12(1939)499. 
CoLoMBIA: Comisaria del Vaupes, Rio Kuduyari. ‘Tree 18 feet. Flowers 
yellow-green, cauliflorous.’’ October 10, 1966. R.E. Schultes, 
R.F. Raffauf et D. Soejarto 24391. 
The bark tested highly positive for alkaloids, the leaves 
slightly positive, with Dragendorff reagent. 
Unonopsis veneficiorum (Mart.) R.E. Fries in Acta Horti Berg. 
12(1937)238. 
COLOMBIA: Comisaria del Vaupes, right tributary of Rio Macu-parana. June 
1-8, 1970. P. Silverwood-Cope 11. 
This plant is reported to be an ingredient of a contraceptive 
formula of the Bora-Maku who inhabit the region of the Rio 
Piraparana in the Colombian Vaupes. The name of the medici- 
nal preparation in Maku is we-wit-kat-ku (‘‘no children 
medicine’’). 
Unonopsis veneficiorum has long been known as an ingre- 
dient of a type of curare in the northwestern Amazon. The plant 
is alkaloidal (Hegnauer, R.: Chemotaxonomie der Pflanzen 
3(1964)118). 
Xylopia amazonica R.E. Fries in Acta Horti Berg. 12(1939)562. 
229 
