Eileen Schofield for searching for specimens at the New York 
Botanical Garden; and Dr. Kjell Zetterstrém for permitting me 
to study specimens at the Ethnografiska Museum, Goteborg. I 
am also grateful to Dr. John Elick for sharing his field notes on 
chamairo and to Dr. Gerald Weiss for supplying the voucher 
specimen to the Field Museum. Part of the research reported in 
this paper was conducted at the Botanical Museum of Harvard 
University under a contract with the United States Department 
of Agriculture (No. 12-14-1001-230, R. E. Schultes, Principal 
Investigator). 
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