7 , A/ (7^--nCU 



TABLE OF CONTENTS 



No. i. January 



PAGE 



Illustrations of Fungi — I, by William A. Murrill i 



The Boletaceae of North America — I, by William A. Murrill. 4 



Notes on North American Hypocreales — I, by Fred J. Seaver 19 



A Bacterial Disease of the Peach, by James B. Rorer 23 



The Problems of North American Liehenology, by Bruce Fink 28 



News and Notes 33 



No. 2. March 



Illustrations of Fungi — II, by William A. Murrill 37 



The Hypocreales of North America — I, by Fred J. Seaver 41 



Filling Tree Cavities, by J. J. Levison 77 



News and Notes 80 



No. 3. May 



Illustrations of Fungi — III, by William A. Murrill 83 



The Composition of a Desert Lichen Flora, by Bruce Fink 87 



Discomycetes of North Dakota, by Fred J. Seaver 104 



The Perfect Stage of the Cotton Anthracnose, by C. W. Edgerton 115 



Ascomycetes and Lower Fungi — Fascicle II, by Guy W. Wilson and 



Fred J. Seaver 121 



News and Notes 126 



No. 4. July 



Studies in Pyrophilous Fungi — I. The Occurrence and Cultivation of 



Pyronema, by Fred J. Seaver 131 



The Boletaceae of North America — II, by William A. Murrill 140 



Sphaerodothis, a New Genus of Dothidiaceous Fungi, by C. L. Shear.. .. 161 



Polyporaceae from Japan, by William A. Murrill 164 



News and Notes 171 



No. 5. September 



The Hypocreales of North America — II, by Fred J. Seaver 177 



A Notable Species of Gymnosporangium from Colorado, by Frank D. Kern. 208 



A New Poisonous Mushroom, by William A. Murrill 211 



A Species of Discosia on Living Bull Pine Seedlings, by F. D. Heald 215 



Noteworthy Additions to the Mycological Herbarium : 



Four Interesting Species of Moulds, by D. R. Sumstine 218 



A New Boletus from Tropical America, by W. A. Murrill 219 



News and Notes 220 



V 



