THE PHILIPPINE 
JOURNAL OF SCIENCE 
C. BoTANY 
Vou. VII AUGUST, 1912 No. 3 
NOTES ON PHILIPPINE ORCHIDS WITH DESCRIPTIONS OF 
NEW SPECIES, V: THE GENUS BULBOPHYLLUM 
IN THE PHILIPPINE ISLANDS.* 
By OAKES AMES. 
‘\) 
(From the Ames Botanical Laboratory, North Easton, Mass., U. S. A.) 
The following paper contains descriptions of nineteen new 
species of the genus Bulbophyllum together with a list of the 
species heretofore ascribed to the Philippine Islands. Those 
which belong to the § Racemosae are closely related to one an- 
other, although distinguishable by characters which I have set 
forth in a provisional key. I am convinced that we have in 
the Philippines a puzzling group of species, closely allied to 
Bulbophyllum adenopetalum Lindl., and to B. dasypetalum Rolfe, 
which cannot be rightly understood until a great deal more 
material than I have seen has been assembled and thoroughly 
studied. In this group we find plants which bear flowers so 
similar in detail that they seem to belong to the same species, 
although they are easily distinguishable and specifically unlike 
in their foliage. Around Bulbophyllum dasypetalum there is 
grouped a number of species which have triangular-lanceolate 
lateral sepals, and around B. adenopetalum there is grouped 
1 Proof read by E. D. Merrill. 
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