Chondodendron toxicoferum (Wedd.) Krukoff 
& Moldenke in Brittonia 3 (1939) 838. 
This species is well known as an ingredient of arrow- 
poison in the Amazon Region. Known from Amazonian 
Peru and Brazil (as Chondodendron polyanthum), it was 
first collected by Castlenau at Pebas in Loreto, Peru, 
where the Yaguas Indians were utilizing it in the man- 
ufacture of curare (KKrukoff and Moldenke in Brittonia 
3 (1938) 22-23, 338). It has hitherto been collected in 
Colombia apparently only once: the collection W. Hox 
12b, which states “‘poison used for blowpipes, ’’ is labelled 
as coming from ‘‘ Entre Rios,’’ a now non-existent set- 
tlement on the Rio Karaparana in the Intendencia del 
Amazonas in Witoto Indian country. 
CotomsBiA: Comisaria del Putumayo, Rio San Miguel 6 Sucumbios, 
Conejo y los alrededores, frente a la Quebrada Conejo. Nombre kofan: 
, ee rT . ss ~ P 
sa-pé-pa. Wood of stem crushed to make curare poison.’’ 2—5 abril, 
1942, Richard Evans Schultes 3522.—Comisaria del Amazonas, Rio 
Hamacayacu. Common name: quina. [April] 1943, F. J. Hermann 
11309. 
BALANOPHORACEAE 
Helosis guyannensis L. C. Richard in Mém. Mus. 
Hist. Nat. Paris 8 (1822) 416, t. 20. 
This is the second collection of Helosis guyannensis 
known from Amazonian Colombia. The first was re- 
ported by Schultes in Bot. Mus. Leafl. Harvard Univ. 
12 (1946) 117. 
Cotompia: Intendencia del Amazonas, Rio Boiauassti. “‘Mata vir- 
gem. Pardsita. Toda a planta e encarnada clara.’’ Ocotober 29, 1946, 
George A. Black & Richard Evans Schultes 46-241. 
NYMPHAEACEAE 
Victoria regia Lindley Monogr. Vict. regia (1887) 8. 
Occurring naturally in Colombia probably only along 
the bank of the Rio Amazonas in the trapécio amazénico, 
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