presence in the acanthaceous genus Justicia, source of 
an admixture to Virola-snuff (25) and reported to be 
itself the source of an hallucinogenic snuff (4), phyto- 
chemical examination of these ethnobotanical field notes 
might seem to be fully warranted. 
It is interesting that this plant is called toé negra, 
since toé or tod is the Peruvian name of the hallucino- 
genic Datura suaveolens. 
Psychotria carthaginensis Jacquin Knum. PI. 
Carib (1762) 16. 
Peru: Departamento de Loreto, Rio Nanay, Samito, Alt. ca. 100 
m. Forest. “Shrub 2 m, tall. Infl. axis light green. Fr. dark green. 
Use: the leaf is used in combination with ayahuasea. N. v. sameruca.’’ 
February 20, 1969. 7. Plowman 2528. 
Juanulloa ochracea Cuatrecasas in Brittonia 10 
(1958) 148. 
Cotompia: Comisaria del Caqueti, Rio Caqueta. Secondary forest 
near Floresta, ca. 15 km. downstream from Puerto Limon. “‘Climb- 
ing epiphytic shrub on fallen tree, 3 m. tall. Calyx red, corolla yel- 
low; leaves coriaceous. Trunk and leaves used for wounds. V. n. 
ayahuasca (Inga).’* December 20, 1968. 7. Plowman 2176. 
The application to the solanaceous Juanulloa ochracea 
of the name ayahuasca may indicate that it represents 
either a species employed directly as the source of a nar- 
cotic or one of the additives to the ayahuasca drink. 
There is, of course, a chemical basis for this belief. The 
alkaloid parquine, isolated from a member of the solana- 
ceous genus Cestrum, has been reported from a species 
of Juanulloa (18). 
Calathea Veitchiana Jl’eitch ex Hooker fil. Bot. 
Mag. (1865) t. 5535. 
Prru: Departamento de Loreto, Rio Nanay. Chiriara. **Herb 1.2 
m. tall in forest. Leaf dark green above with lt. green markings 
along midrib and margin; reddish purple beneath; pulvinus pale 
[140 ) 
