NEW OR NOTEWORTHY SPECIES. 223 
2 inches long, minutely serrulate: heads an inch in diam- 
eter, 13 inches high, ovoid in flower, semiovoid in fruit by 
the deflection of all the pedicels: calyx villous, the tube only 
- half as long as the slender-subulate teeth. 
Wind River Mountains, Wyoming, collected by Nelson, 
and in the Spanish Basin, Madison Range, Montana, Flod- 
man. Mr. Nelson's fine specimens were distributed partly 
as T. eriocephalum, and partly as T. longipes. 
TRrFoLIUM ELMERI. T. plumosum, Elmer Drew, in Bull. 
Torr. Club, xvi. 149, not of Dougl. Perennial, glabrous, the 
several stems upright, 2 feet high including the long naked 
peduneles (but these 6 or 8 inches long): elliptic-lanceolate 
abruptly acute and saliently dentate leaflets 13 to 2 inches 
long or even longer: heads rather more than an inch broad, 
subglobose, the pedicels not deflexed in age: calyx-tube 
short, villous, the almost filiform teeth four times longer, 
subplumose below, naked above. i 
Banks of the South Fork of Trinity River, near Grouse 
Creek, in northwestern California, collected by Messrs. Ches- 
nut and Drew in 1889. Not otherwise known, unless a 
single specimen collected long ago by Douglas, and pre- 
served in the herbarium of the British Museum without a 
name, be of this species. 
TRIFOLIUM LATIFOLIUM. T. longipes, var. latifolium, Hook. 
Lond. Journ. Bot. vi. 209. This plant, now abundantly rep- 
resented in the herbaria, shows no traces of intergradation 
with T. longipes, from which its low stature, not at all elon- 
gated peduncles, its broad short leaflets, and distinctly pedi- 
cellate flowers all deflexed in age, thoroughly and specitically 
distinguish it. 
TRIFOLIUM MACILENTUM. Perennial, slender, glabrous, a 
foot high, the leaves mostly radical and the peduncle ter- 
minal : leaflets very thin and membranaceous, only sparingly 
30 
