194 SEVENTEENTH REPORT. 



UNREPORTED MICHIGAN FUNGI FOR 1911, 1012, 1913 



AND 1914. 



BY C. H. KAUFFMAX. 



Several drr seasons and lack of opportunity to visit the parts 

 of the state where rainfall was sufficient for the growth of fungi, 

 have been responsible for omitting the annual reports since IIHI. 

 During this period, however, some more species have come to hand, 

 mostly from Ann Arbor, Detroit and New Richmond. Mrs. T. A. 

 Cahn, secretary of the mycological section of the recently formed 

 Detroit Institute of Science has sent in quite a number of import- 

 ant finds. My own activities were limited to southern Michigan. 



In the meantime, several lines of work undertaken by students 

 in our laboratory makes it possible to report on a number of 

 groups hitherto somewhat neglected. Mr. A. J. Pieters has been 

 studying the Saproleginales and some more species of this im- 

 portant group are here included. Mr. A, H. W. Povah contributes 

 a number of rare and interesting s[)ecies of the Mucorales. Through 

 the assistance of Mr. E. B. Mains, a preliminary account of the 

 Uredinales of the state is made possible. The rusts are usually con- 

 sidered difficult, and until the appearance of Professor Arthur's 

 publications in the North American Flora, this was largely due to 

 the scattered data in the literature. The species here included are 

 deposited in the Cryptogamic Herbarium of the University. The 

 older collections found in the herbarium were made by Professors 

 Beal and Wheeler of Michigan Agricultural College and by Pro- 

 fessor Spalding, Mr. J. N. Johnson, Mr. A. J. Pieters and Mr. G. 

 H. Hicks at Ann Arbor and elsewhere; the recent collections mostly 

 by Mr. Mains and myself. A full set of these was submitted to 

 Professor J. C. Arthur, who verified or identified them and to whom 

 grateful acknowledgment is made. Mr. Mains has compiled an 

 index to the heteroecious rusts, from which the data are included 

 for those species. 



PHYCOMYCBTBS. 



MuooracecB. 



Absidia glauca Hageni. On decaying wood. Washt. County. Feb. 

 14, fide Povah. 



