ne Ohio Naturalist, 



PUBLISHED BY 



The Biological Club of the Ohio State University. 



Volume XI. JUNE, 1911. No. 8. 



TABLE OF CONTENTS. 



OVERHOLTS— The Known Polyporaceae of Ohio 353 



NiswoNGER— Two Species of Diptera of the Genus Drosophila 374 



Bembowee— Pollination Notes from the Cedar Point Region 378 



Wells— Meetin,i.'i< of the Biological Club 384 



THE KNOWN POLYPORACEAE OF OHIO.^ 



L. O. OVERHOLTS. 



The purpose of the present paper is to give a Hst of the Poly- 

 poraceae that have been reported from Ohio. While it is highly 

 probable that some species have been overlooked, yet the list is 

 as complete as could be made from the literature at hand. The 

 floral literature of Ohio is singularly wanting in published lists of 

 our fungi. Perhaps no Basidiomycetes are more difficult to iden- 

 tify than those annual foniis of the Polyporaceae which have the 

 white pileus and white context. Even our best mycolygists have 

 trouble in distinguishing them. More than half of the species listed 

 have been collected in the Miami valley by the writer and others 

 connected with the Department of Botany of Miami University. 



The nomenclature followed is that of Mr. W. A. Mm-rill in his 

 monograph of the family. The most generally used synonyms 

 have been added to correlate this paper with other writings on 

 the famih^ A bibliography of the best American and foreign 

 literature has been appended and an effort has been made to cite 

 as many illustrations as possible. The paper has been prepared 

 with the hope that a number of persons will become sufficiently 

 interested to do collecting in various parts of the state. From 

 such the writer would be glad to receive specimens, and will 

 determine all sent to him for that purpose. Any species not 

 included in this list and those marked as doubtful, are especially 

 wanted for examination. 



The writer wishes to express his thanks to all who have aided 

 in the preparation of the paper. Especial thanks are due to 

 the Lloyd Brothers of Cincinnati, for free access to the liter- 

 ature contained in the Lloyd library; to Mr. C. G. Lloyd for his 

 determinations and verifications and for access to his excellent 

 herbarium; to Mr. W. A. Murrill for determinations and verifi- 

 cations and to Dr. Bruce Fink under whose direction the work 

 has been done. 



' Contributions from the Botanical Laboratory of Miami University. V. 



