BOTANICAL MUSEUM LEAFLETS 
HARVARD UNIVERSITY 
Campripae, Massacuuserrs, Juty 28, 1932 
AN EXTENSION OF RANGE FOR 
EPIDENDRUM RHYNCHOPHORUM 
BY 
OAKES AMES 
THE MEXICAN ORCHIDS published by A. Richard and 
H. Galeotti, in Annales des Sciences Naturelles in 1845, 
and described with exasperating brevity, (the average 
length of the descriptions hardly exceeding three lines of 
print), have been a source of perplexity for students of 
the Mexican flora. Several of the species are known only 
through the type specimens in the herbarium of the 
Muséum d’ Histoire Naturelle de Paris. Among the ex- 
tremely rare orchids is Mpidendrum rhynchophorum. This 
species was originally described as follows: ** Pseudobul- 
bis ovoideis 1—phyllis; folio oblongo-lanceolato, acuto; 
flor. luteis, racemo 4—5 floro: labello trilobo, adnato, lobis 
lateralibus trunecatis, intermedio angusto-lineari. ”’ 
Very recently, while collecting for the Arnold Arbo- 
retum in the Department of Comayagua, Honduras, 
Mr. J. B. Edwards found Hpidendrum rhynchophorum in 
full flower in May. It has seemed worth while to publish 
an account of Mr. Edwards’ specimens and by means of 
a drawing, to remove the ambiguity caused by Richard 
and Galeotti’s inadequate description. 
‘The extension of range from Mexico to Comayagua, 
