Psychotria carthaginensis Jacquin Enum. PI. 
Carib. (1760) 16. 
CoLtompia;: Comisaria del Amazonas, Rio Apaporis, Raudal Yaya- 
copi (La Playa) and vicinity. Quartzite base. Alt. about 800 ft. 
‘Bush. Flowers white.’’ April 15, 1952. R.E. Schultes et I. Cabrera 
16203,—**Bush. Fruit red. On rocks of bank. Makuna name wy- 
soo-dé.”’ August 18, 1952. Schultes et Cabrera 16890. 
The Makuna Indians assert that the fruits of this 
shrub, if eaten, cause a poisoning that results in several 
days of weakness, fevers, nausea and disturbed vision. 
Psychotria involucrata Swartz Prodr. Veg. Ind. 
Occ. (1788) 45. 
CotomsBia: Comisaria del Amazonas, Rio Amazonas, Leticia and 
vicinity. September 1946. R.E. Schultes 8231.—Rio Apaporis, Sora- 
tama, between Rio Pacoa and Rio Kananari. “‘Bush, Highland.’’ 
August 20, 1946. R.E. Schultes et I. Cabrera 18629. 
The Tikuna Indians of the Leticia region and the 
Makunas of the Rio Apaporis both consider the fruits 
of Psychotria involucrata poisonous when ingested. 
Psychotria nudiceps Standley in Field Mus. Publ. 
Bot. 8 (1981) 378. 
CoLtompia: Comisaria del Amazonas, Trapecio Amazénico, Rio Lo- 
retoyacu. October 1946, R.E, Schultes 8408. 
[t is acommonly accepted belief amongst the rubber 
tappers in this part of Colombia and adjacent Peru and 
Brazil that the fruits of Psychotria nudiceps are toxic 
when eaten. 
Psychotria psychotriaefolia (Seem.) Standley in 
Contrib. U.S. Nat. Herb. 18 (1916) 133. 
Cotompra: Comisaria del Putumayo, Mocoa and vicinity. “‘Leaves 
used with yajé.”’ No date. C. Naranjo s.n. 
Ecuapor: Provincia del Napo, Rio Aguarico, Dureno. Alt. about 
800 ft. ‘‘Area near river and flood region. Shrub leaves and fruit 
used in preparation of the yajé narcotic as an admixture with Banis- 
teriopsis.’’ Alt. 800 ft. May 29, 1966. H.V. Pinkley 225; 235. 
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