sents the first involving the related genus /ryanthera as an 
hallucinogenic group of plants. 
Voucher specimens of the Virolas cited above have been 
added to the Economic Herbarium of Oakes Ames in the Bo- 
tanical Museum of Harvard University, the herbarium in the 
Museo de Historica Natural ‘Javier Prado” in Lima, Peru, and 
the herbarium of the Instituto Nacional de Pesquizas da 
Amazonia in Manaos, Brazil. The material was determined by 
Prof. Richard Evans Schultes, Dr. Timothy C. Plowman and 
Dr. William Rodrigues. 
Species indicated in the foregoing discussion: 
Iryanthera macrophylla (Benth.) Warburg in Nov. Act. Nat. Cur. 68 (1897) 
153. 
Osteophloem platyspermum (DC.) Warburg loc. cit. 162. 
Virola calophylloidea Markgraf in Fedde Repert. 19 (1923) 24. 
Virola elongata (Benth.) Warburg in Nov. Act. Nat. Cur. 68 (1897) 178. 
Virola loretensis A. C. Smith in Bull. Torrey Bot. Cl. 60 (1933) 95. 
Virola Pavonis (DC.) A.C. Smith in Brittonia 2 (1938) 504. 
Virola surinamensis (Rol.) Warburg in Nov. Act. Nat. Cur. 68 (1897) 208. 
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