CONTENTS 



Illustrations of Fungi— XXVIII - - - W. A. Murrill 107 



Uredinales of Costa Rica Based on Collections by E. W. 

 D. Holway J. C. Arthur hi 



Conidial Formation in Sphaeronema fimbriatum. 



S. G. Lehman 155 



Notes on New Species of Fungi fromVarious Localities-^II. 



Charles E. Fairman 164 



Studies of North American Peronosporales — VII. New 



and Noteworthy Species - - Guy West Wilson 168 



Notes and Brief Articles -----------170 



Index to American Mycological Literature - - - - - 172 



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