CONTENTS 



studies in North American Hyphomyceies — I , 



David Ross Sumsti 



Studies in Colorado Fungi — L Discomycetes 



Fred J. Seaver 57 



Cultures of Some Heteroecious Rusts. W. P. Fraser . 67 



The Personal Factor in Mushroom Poisoning 



John Dearness 75 



The Agaricaceae of Tropical North America— II. 



William A. Murrill 79 



News and Notes * 9 2 



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