yO THE PLANT WORLD 



and varied rust-flora, It was decided that a thousand miles 

 was not too great a distance to go for a few observations at 

 first hand among its cafions, its mesas, and its mountain 

 slopes. 



Enthusiasm for the undertaking was augumented by a 

 visit early in spring to Lake Forest, 111., a distance of one 

 hundred miles, where during an afternoon the two species 

 of Gymnosporangium previously reported from the locality 

 by Professor R. A. Harper were found, together with the 

 previously unknown species for the locality, G. clavipes and 

 G. clavarialeforifie, and also a number of grass and sedge 

 rusts, all in condition for culture work. The round trip con- 

 sumed but sixteen hours, and yielded eight species of rusts, 

 whose culture promised considerable addition to recorded 

 knowledge. 



Judging from this experience it was thought that a 

 trip to the mountains of five to seven days would yield most 

 abundant returns. But as the plans of men oft go awry, 

 so for reasons that could not have been foreseen the required 

 time was deplorably underestimated, but the botanical returns 

 were so valuable that the time was not regretted, and it 

 appears worth while to give some account of the trip. 



The start was made from Lafayette in central Indiana 

 on April 25, in company with Mr. Frank D. Kern, who 

 shares equally with the writer in all credits due for success- 

 ful collections and observations. In the daily papers we 

 saw brief notices of belated snows in Colorado, and were 

 somewhat disquieted the next day upon observing white 

 patches from the car window as we approached Nebraska. 

 The areas of snow gradually multiplied until the whole land- 

 scape was a winter scene. Before darkness had fallen, 

 however, the snow was left behind, and our spirits rose 

 accordingly. Late that evening we were met at the hotel in 

 Denver by Mr. E. Bethel, a resident of the city, who planned 

 trips for the next two days, and to whom we are indebted 

 for many courtesies during our stay, his intimate field 



