APPENDIX 
The following enumeration is the first list published 
in English of the hallucinogenic mushrooms of Mexico. 
With each name we give the place of publication of (1) 
the technical name of the mushroom and (2) the earliest 
report of its use in Mexico as a divinatory agent. Doubt- 
less more species will be discovered, but we believe our 
list is complete through 1960. 
Not all divinatory mushrooms are hallucinogenic. The 
Indians consume some kinds for divinatory purposes be- 
cause of their suggestive shape. This is true of Cordyceps 
capitata (Holmsk.) Link, as well as its host fungi, H/a- 
phomyces granulatus Fr. or EKlaphomyces variegatus 
Vitt., and also of Diuctyophora phalloidea Desvaux. 
Cordyceps capitata has been found to contain an indolic 
compound that might cause hallucinations, but only in 
trace amounts. There are also reports of the use of Cla- 
varia truncata Quél. and Nevrophyllum floccosum(Schw. ) 
Heim, but their hallucinogenic virtue remains doubtful, 
and they are always taken in conjunction with Psilocybe 
Wassonu Heim. (See Les champ. halluc. du Mexique, 
1958, pp. 81, 83, 99, 162.) Psilocybe muliercula Singer & 
Smith has been reported as an hallucinogen (in Mycologia 
50(1958) 145), but this concept is a synonym of Ps. 
Wassonu (see below). 
Professor Roger Heim and I accept responsibility for 
all species and varieties listed that are marked by an 
asterisk. 
*Conocybe siligineoides Heim in Rev. Mycol. 22 (1957) 
197. 
Use first reported: in Comptes Rend. 242 (1956) 
1891. 
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