Philippine Basidiomycetes—II| 
PAUL W. GRAFF* 
(WITH PLATE 15) 
A large number of basidiomycetous fungi have been added from 
time to time to those known from the Philippine Islands and, as 
opportunity has offered, numerous tropical species described by 
different botanists have been checked. The result is that, with 
the extension of our knowledge, many ranges have been extended, 
and not a few supposedly distinct species have proven to be iden- 
tical. The confusion of names has, to a considerable extent, been 
due to a failure to compare authentically named specimens from 
the larger museums and herbaria and to a slight and possibly un- 
conscious tendency to limit species distribution with geographic 
boundaries. A brief review of the synonymy in the following 
pages, in company with a comparison of named specimens, will 
show the value of a comparative study of species from various 
localities, and the need for a continuation of such studies. Ex- 
‘tensive studies should also be made of material from Japan, 
Formosa, China, the Malay States, Borneo, Java, Celebes, New 
Guinea and Australia. This would bring to light many interesting 
facts regarding little-known species. Likewise, a comparative 
study of material from these localities with fungi collected in other 
more distant and less related tropical countries would probably 
broaden many vietws regarding the localization of fungal distri- 
bution. For example, Awricularia mesenterica (Dicks.) Fr. is 
also of common occurrence in the American tropics and southern 
Europe; Corticium caeruleum (Schrad.) Fr. is found in North 
America, southern Europe and northern Africa; and Pleurotus 
flabellatus Berk. & Br. has been collected in tropical America, 
Ceylon, and South Africa, as well as in the Philippines. 
The material in the following list of fungi was collected on the 
islands of Luzon, Mindoro, Polillo, Leyte, Negros, Culion, and 
* Formerly Mycologist in the Biological Laboratory, Bureau of Science, Manila. 
4 
