299 
tains (type), and 918% from Spanish Basin, 1896; Frank 
Tweedy, no. 340, Park county, 1887. 
Nevada: S. Watson, no. 667, 1868. 
Y SENE€IO CROCATUS, 
/S. aureus var. croceus Gray, Proc. Acad. Phila. 1863: 68. 1863. 
Not .S. croceus DC. 
This is well distinct from both the preceding and from S. aureus, 
differing in its smaller oval or obovate, coarsely and bluntly den- 
tate, somewhat fleshy basal leaves. It represents S. obovatus of 
the East. It was collected in Montana by Mr. Flodman in the 
Little Belt Mountains, near the pass, no. 9II. ; 
CREPIS RUNCINATA ALPICOLA, 
Stem scapose, about 1 dm. high, generally only 1-flowered; 
Sele entire, or with a few small teeth, and with very short pet- 
ioles, 
In habit it is very unlike the typical C. runcinata, but I have 
been unable to find any essential characters in the heads, involu- 
cre, pappus or achenes, by which to separate it as a species. The 
short I-flowered stem, smaller and more entire leaves may be due 
to the high altitude, 7000 feet, at which it grew. . 
Type: Flodman, no 931, August 24, 1896, from Yogo Baldy, 
Little Belt Mountains. 
Antennaria dioica and its North American Allies. 
By P. A. RYDBERG. 
In 1892 when I began to determine my Black Hills collection, 
I felt that there must be something wrong in the genus Anfennana, — 
especially in the group of which A. dioica is the representative _ 
species. My studies then, my field work in 1895 and 1896, and oe 
Mr. Flodman’s collection have made it possible I think to remove at 
least a part of the difficulty. What have been named in our her- 
baria A. dioica and A. alpina constitute not less than six distinct — 
species. I suspected that A. plantaginifola contains more than one _ 
species, but have not been able to satisfactorily solve the problem. 
This seems to have been done by Prof. E. L. Greene in a recent 
