112 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 



Mountain bogs. 



Montana: Cut Bank Creek, 1883, Canby, 2S1/; Pack River, 

 1 86 1, Dr. Lyall. 



Salix chlorophylla And. Vet. Akad. Hani. Stockh. 6: 138 [Man. R. 

 •M. 237]. 



In mountain swamps, at an altitude of 1500-3000 m. 



Montana: East Boulder, Park Co., 1887, Tzceedy, 27 j ; Old 

 Hollowtop, Pony Mts., July 7, 1897, Rydbet-g & Bcssey, j(pij : Gal- 

 latin Co., 1886, TzL'cedy, iiSj. 



Yellowstone Park: East De Lacy's Creek, Aug. 10, 1897, 

 Kydberg & Bcssey, jgid. 



Salix vestita Pursh, Fl. Am. Sept. 610 [III. Fl. i: 498; Man. R. 



M. 339J • 



At an altitude of 2000-3000 m. 



Montana: Upper Marias Pass, Sargoit: 1883, Caiibv, 2^2; 

 McDonald's Peak, 2gi ; Rocky Mountains, 1861, Dr. Lxall. 



Salix saximontana Rydberg, Bull. N. Y. Bot. Gard. i : 261 ; Salix 



reticulata Bebb ; Coulter, Man. R. M. 339 ; not L. 



This species includes all specimens that have been named S. 

 reticulata from the Rocky Mountains within the United States. It 

 differs from the European S. reticulata in the narrower, more acute, 

 lighter green, ancj less reticulate leaves, and the glabrous bracts and al- 

 most glabrous filaments. In Montana it seems to grade into S. 

 nivalis. The following specimens belong here : 



Montana: Belt Mts., 1883, Scribner, 260. 



Yellowstone Park : 1884, Tzveedv, jj. 



Salix nivalis Hook. Fl. Bor. Am. 2 : 152 ; Salix reticulata niialis 



Anders. ; DC. Prod. 16": 301 [Man. R. M. 339; Rydberg, Bull. 



N. Y. Bot. Gard. i: 262]. 



It is nearest related to S. saximontana, and perhaps represents 

 only a most depauperate form of it, differing in the small leaves, 

 less than i cm. long, which are much more reticulate than in S. saxi- 

 montana. It is much less related to S. reticulata, differing in the 

 small leaves, the 3-i2-flowered short catkins which are very short- 

 peduncled, the shorter broader and almost glabrous bracts, the 

 glabrous filaments and shorter capsules. At an altitude of 2500- 

 3500 m. 



Montana: Old Hollowtop, Pony Mts., July 7 and 9, 1897, Ryd- 

 berg cf- Bessey, 3^26. 



