THE GENUS VIOLA IN MINNESOTA. 115 
THE GENUS VIOLA IN MINNESOTA.—I. 
Among the species of Viola proposed as new in the last issue 
of Prrronta were several that were known to me only from 
within the limits of the extensive and physiographically 
diversified State of Minnesota. Not long after the publica- 
tion of these, there came to me, from the University of Min- 
nesota, evidence that certain students there had been 
endeavoring to work up their collectings of last season, in 
the light of my papers upon the genus; for a considerable 
suite of specimens was sent me, asking for my approval or 
disapproval—as the several cases might demand—of their 
identifications of the species. : 
Having acceded to this request, I was afterwards besought 
by Professor MacMillan to permit him to send me for inspec- 
tion and study the entire collection of Minnesota specimens 
of this genus as preserved in the Herbarium of the State 
University ; and this article is the result of such a study of 
all that has hitherto been collected of these plants, within 
the State, under the auspices of the institution above named. 
The collection is an extensive one; attesting a zeal and a 
thoroughness on the part of a great number of botanists, 
botanical collectors and amateurs beyond all that I had an- 
ticipated, even with a full knowledge of the contents of that 
elaborate list of ten years ago, published under the direction 
of Professor MacMillan, in the Metasperme of the Minnesota 
alley, 
The new catalogue of violets here given, is made in the 
light of all, or nearly all, the original material of the Metas- 
perme. list, augmented by much that has accumulated at the 
University Herbarium since 1892, and by extensive and 
