CONTENTS 



Contributions to our Knowledge of Oregon Fungi— I 



S. M. Zeller 173 



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



Some Characters of the Southern Tuckahoe 



John A. Elliott 222 



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

 Notes and Brief Articles 231 



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