TABLE OF CONTENTS 



No. i. January 



Page 



Diagnoses of American Porias — I, by L. O. Overholts i 



Uredinales collected by Fred J. Seaver in Trinidad, by J. C. Arthur.... 12 



Illustrations of Fungi — XXXIII, by W. A. Murrill 25 



The Ophiobolus causing Take-all of Wheat, by H. M. Fitzpatrick, H. E. 



Thomas, and R. S. Kirby 30 



A Preliminary List of the Myxomycetes of the Cayuga Lake Basin, by 



F. B. Wann and W. C. Muenscher 38 



Notes and Brief Articles 42 



Index to American Mycological Literature 53 



No. 2. March 



A New Septobasidium on Pinus Strobus, by W. H. Snell 55 



Dark-spored Agarics — I. Drosophila, Hypholoma, and Pilosace, by W. 



A. Murrill 61 



A New Species of Myriangium on Pecan, by L. E. Miles 77 



New Japanese Fungi. Notes and Translations — XI, by T. Tanaka.... 81 



Notes and Brief Articles , 90 



No. 3. May 



Reliquiae Farlowianae, by Roland Thaxter 99 



New or Noteworthy Rusts on Carduaceae, by H. S. Jackson 104 



Dark-spored Agarics — II. Gomphidius and Stropharia, by W. A. Mur- 

 rill : 121 



The Method of Cleavage in the Sporangia of Certain Fungi, by Carl A. 



Schwarze 143 



No. 4. July 



Contributions to our Knowledge of Oregon Fungi — I, by S. M. Zeller. . 173 



Dark-spored Agarics — III. Agaricus, by W. A. Murrill 200 



Some Characters of the Southern Tuckahoe, by John A. Elliott 222 



Cultures of Heteroecious Rusts, 1920-21, by W. P. Fraser 228 



Notes and Brief Articles 231 



" No. 5. September 



Studies in Tropical Ascomycetes — I. Neopeckia diffusa and Herpotrichia 



albidostoma, by F. J. Seaver 235 



Life History of an Undescribed Ascomycete isolated from a Granular 



Mycetoma of Man, by C. L. Shear 239 



