MICHIGAN ACADEMY OF SCIENCE. 55' 





UNREPORTED MICHIGAN FUNGI FOR 1908, WITH A MONOGRAPH 

 OF THE RUSSULAS OF THE STATE.* 



C. H, Kauffman. 



The summer of 1907 was characterized by extreme dryness throughout 

 the state. As a result, the business of the mycological collector and student 

 was almost at a stand-still, and very few additions can be made to our flora. 

 It has been possible, however, to work up in detail some of the material and 

 notes of previous summers, and especially the accumulated information on 

 the genus Russula. This paper, then, is again composed of two sections: 

 First, the meagre list of unreported fungi; second, a critical study of our 

 Russulas. In the list of Ascomycetes are included species of the Geoglos- 

 saceae which have been studied by Dr. E. J. Durand from specimens collected 

 in Michigan, and now in other herbaria than ours. 



ASCOMYCETES. 



Exoascaceae. 



Taphria aurea (Pers.) Fr. On poplar aments. Washtenaw Co., May 2, 



fide L. H. P.** 

 Geoglossoceae. 



Microglossum longisporum Durand. Glen Lake, August, 1902, legit. 



C. G. Lloyd, fide Durand, 

 Microglossum rufum (Schw). Underw. (Syn. Mitrula rufa.) Bay Mew, 



Emmet Co., 1905, legit. C. H. K., fide Durand. 

 Mitrula phalloides (Bull.) Chev. Legit. Harper, fide Durand. 

 Gloeoglossum difforme (Fr.) Durand. (Syn. Geoglossum difforme Fr.). 



Glen Lake. Legit, C. G. Lloyd, fide Durand. 

 Geoglossum nigritum Cke. Glen Lake. Legit. C. G. Lloyd, fide 



Durand. 

 Trichoglossum velutipes (Pk.) Durand. (Syn. G. hirsutum var. Ameri- 



canum Cke.). See 8th Mich. Acad. Rep. 

 Geoglossum hirsutum (Pers.) Boud. (Geoglossum hirsutum Pers.) Kent 



Co., legit, Longyear, fide Durand; 

 Helotiaceae. 



Sclerotinia tuberosa (Hedw.) Fuck. Sandy maple woods. Macon, 



Lenawee Co., April 21, fide L. H. P. 

 Elaphomycetaceae. 



Elaphomyces granulatus Fr. (Syn. E. cervinus (Pers.) Schroet.) Woods, 



Cascade Glen, Ann Arbor, Washtenaw Co., August 14, fide L. H. P. 

 Hypocreaceae. 



Cordvceps ophioglossoides (Ehrb.) Link. On Elaphom3Tes granulatus. 



August 14, fide L. H. P. 



BASIDIOMYCETES. 



Polyporaceae. 



Boletus peckii Frost. Oak and maple woods. Washtenaw Co., August 

 20, fide L. H. P. 



♦Contribution No. 113 from the Botanical Department of the University of Michigan. 

 **L. H. Pennington. 



