( 268 ) 
flowered; bracts obovate, truncate, fuscous, hairy with long 
Nha silky hairs; filaments long and slender, 2-3 times as 
ong as the bracts ; capsule more or less densly white to- 
ees oblong-ellipsoid, tipped with an evident style, which 
is about .5 mm. long; stigmas 2, 2-cleft 
This is characterized by its short shining branches, almost 
sessile leaves and catkins, and the small crowded shining 
leaves, which are very strongly veined. The leaves remain 
for several seasons on the stems, their soft parts having de- 
cayed, leaving the netted skeleton of veins remaining. The 
leaves remind us on the one hand of those of S. glaccalis and 
S. phlebophylla and the other of those of S. retusa and 5S. 
Dodgeana. The structure of the catkin is that of a typical rep- 
resentative of the Arcticae group. The capsule is hairy, with 
a distinct style and the bracts are covered by the characteristic 
long white hairs. 
The only specimens I have seen were collected at Point 
Barrow by Jlurdock, no. 6., preserved in the Gray 
Herbarium. 
13. SALIX PETROPHILA. Salix arctica petraea Anders. in 
DC. Prod. 16: 287. Not S. petraea Anders. 
This should, I think, be regarded as a distinct species, 
differing from S. angloruwm in the following respects: The 
leaves are narrower and greener; the branches are more 
slender and do not turn blackish in drying; the catkins are 
much smaller and narrower, and the capsule is shorter, rather 
ovoid and more densely villous. It is, however, much nearer 
to .S. anglorum, than the species of the Rockies that have 
been regarded as that species. It grows at an altitude of 2500 
m. or more. 
CoLorapo: 18472, C. C. Parry; 1878, AL. E. Fones, no, 
722; Hall & Harbour, nos. 520 and 187; Gray’s Peak, 1885, 
HI. N. Patterson, no. 136; 1871, Geo. Smith; 1868, Vasey, 
NO. 534. 
Urau: 1879, M. E. Fones, no. 1241. 
Wyomine: Teton Forest Reserve, 1897, Tweedy, no. 201. 
YELLOWSTONE Park: Upper Falls, 1871, Robert Adams ; 
Stinking Water, 1885, Tweedy, no. 485. 
