246 DAVENPORT ACADEMY OF NATURAL SCIENCES. 



FUNGI COLLECTED IN COLORADO, WYOMING, 

 AND NEBRASKA IN 1895, 1896, AND 1897. 



H. HAROLD HUME. 

 INTRODUCTION BY L. H. PAMMEL. 



In 1895 ^ collecting trip was planned embracing the region about 

 Pike's Peak, Clear Creek Canon and some other points in Colorado. 

 Additional stops were made at several places in Nebraska, and for the 

 sake of convenience these plants are also listed here, although we have 

 excellent accounts of the fungi of this state by Professor Bessey, his 

 students, Webber, Pound, and others. Full lists of the Nebraska fungi 

 may be found in the reports of the Experiment Station and the excel- 

 lent contributions issued by the University of Nebraska. 



In the year 1S96 a trip was made through northern Colorado. The 

 first stop was made at Ft. Morgan, which is near the Platte River. 

 Most of the collecting here was done in the river bottom. From there 

 I went to Greeley, where a few specimens were collected, and later 

 some were gathered in and about Ft. Collins. 



I desire in this connection to express my obligations to Professors 

 Crandall and Gillette for the numerous favors shown on the entire 

 trip. Professor Crandall's familiarity with the country and knowledge 

 of Colorado plants was especially valuable to me. 



As to the relative importance of the parasitic fungi of the plains, a 

 few general observations may be made in this connection. In the 

 foot-hills, especially those adjacent to the plains, there are compara- 

 tively few widespread fungus diseases of plants although there are some 

 species which are extremely abundant in places, as, for instance, the 

 Uromyces Sophorce, which is widely scattered on Sophora, its host plant. 

 The abundance of some other species of fungi on the plains may also 

 be noted. The ^cidium Psoralce on Psoralea is widely spread and 

 also the Puccinia Malvastri. These fungi undoubtedly influence very 



