From the Bulletin op the Torrby Botanical Ci.ub, 35: 517-533 1908. 



Some North Dakota Hypocreales 



Fred J. Seaver 



For some time past the writer has been engaged in the prep- 

 aration of a monograph of the North American Hypocreales and the 

 year spent in North Dakota, in the employ of the North Dakota 

 Agricultural College, afforded a fair opportunity for the study of 

 the various species of this order in that particular locality. While 

 the work on the local fungi of that state was not limited to the 

 order treated here, an especial effort was made to accumulate as 

 much material of this order as possible. All of the species reported 

 here were collected in the summer and autumn of 1907 and the 

 spring of 1908. Most of the material was collected near Fargo, in 

 the extreme eastern part of the state, but several specimens were ob- 

 tained at Hawk's Nest, a low range of hills near the central part of 

 the state, the ravines of which are shaded by a considerable growth 

 of forest trees. 



North Dakota, being essentially a prairie state and having its 

 timbered regions limited to narrow belts along the rivers, lakes, and 

 ravines in mountainous districts, does not afford the most favor- 

 able conditions for the growth of those forms of fungi which thrive 

 best in moist shaded places. But notwithstanding the unfavorable 

 conditions, the season spent in work on the fungus flora of this 

 state was rewarded with a surprisingly large number of the sapro- 

 phytic forms, while parasitic fungi which occur in more open 

 regions were found to be most abundant. 



The order Hypocreales is represented by approximately two 

 hundred species in the whole of North America, and it would not 

 be expected that a large number of species of a single order of this 

 size would be collected in a given locality during one season. 

 The list is published at this time, not on account of the large 

 number collected, but to add to the knowledge of the distribution 

 of this order in North America, and since there is little published 

 work on the fungi of North Dakota, it is hopad the list will be of 

 interest to some. 



527 



