A PARTIAL LIST OE THE PARASITIC FUNGI OF VERMONT. 



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By W. A.h^xoyi''M?S. 



INTRODUCTION. 



Although the higher plants of Vermont have received much attention from 

 various botanists, the cryptogams and especially those species of fungi para- 

 sitic upon other organisms have been much less studied. But few persons 

 have collected these fungi within the limits of the state, and of these few no 

 one has left definite record of his work. The first Vermont botanist of 

 whose labors in this field we have knowledge, was Charles C. Frost, of 

 Brattleboro. Although his energies were directed chiefly toward the fleshy 

 fungi, he included in the "Catalogue of Plants Growing Without Cultivation 

 within Thirty Miles of Amherst College," (1875) a list of parasitic fungi, of 

 which 115 species come within the groups here considered. No definite 

 localities are given in Frost's list, and no specimens were left in his herb- 

 arium. While it is probable that many, or, indeed, most of the species he 

 mentions were collected in Vermont, we cannot be sure of it, and no species 

 are included in the following list on the strength of Frost's publication. 



^ No other collections of moment were made of Vermont fungi until the be- 

 ^ - ginning of those on which this catalogue is based. This list has been com- 

 piled as a part of the work on plantpathology of the botanical department of 

 the Vermont Experiment Station, and for this reason non-parasitic groups 

 have so far received little attention. A thorough knowledge of all parasitic 

 fungi existing in the area under consideration is essential to any detailed 

 study of plant diseases, since a large proportion of such diseases result from 

 the invasion of the plant by parasitic fungi, while a considerable number of 

 those which originate in other ways are complicated by the attacks of such 

 parasites. 



It is fully recognized that there is no sharp line of distinction between 

 parasitic fungi and those which are saprophytes, and there is no attempt, 

 therefore, to make close discriminations in this matter. 



The present list includes the downy mildews, powdery mildews, smuts 

 and rusts. The nomenclature follows, with some exceptions, Saccardo's 

 Sylloge Fungorum. In the Erysipheae, Burrill's classification as given in 

 Ellis and Everhart's North American Pyrenomycetes has been followed. 

 The more important recent synonyms are printed in italics after the name of 

 the fungus. In the Uredineae the spore stage precedes the name of the host, 

 I indicating the aecidium, II the uredo, and III the teleuto stage of the fun- 

 gus. Notes of interest are then given and the locality and date of collection 

 follow. The name of the collector is indicated by an initial : C. stands for 



