THE WILLOWS OF ALASKA 313 



separating the waters of the Yukon and the rivers flowing into Kotzebue 

 Sound from those of the Arctic coast, this tree-willow does extend be- 

 yond that divide to the headwaters of the Arctic rivers, and in many 

 places furnishes the only wood available as fuel to Indians, prospec- 

 tors, and explorers. 



Mr. Rvdberg's Salix longistylis^ based on a specimen collected at 

 the mouth of Klondike Creek, Yukon Territory, although compared 

 bv him only with Salix sitchensis^ is clearly identical with the present 

 species. 



Specimens of Salix alaxeiisis have been examined as follows : 



Skagzi'ay and White Pass. — At Glacier on the White Pass railroad, 

 and at Skagway, F. A. Walpole, 1900 (Nos. 107 1, 1077, 1106). 



Lake Bejuiett. — On the shore and uplands, J. B. Tarleton, 1899 

 (Xo. 12, in part). 



Glacier Bay. — At various points about the bay, Coville and Kearney 

 (Xos. 622, 639, 663, 696, 69S, 699, 702), Trelease and Saunders 

 (Xos. 3344 to 334S, 3364), Brewer and Coe (Xo. 57), Walter H. 

 Evans, 1S97 (Xo. 156). 



Takutat Bay. — Abundant on the west side of the bay, and at its 

 northern end and arms, Coville and Kearney (Xos. 996, 105S, 11 20, 

 1 149), Trelease and Saunders (Xos. 3349, 3359? 347^? in part). 



Prince William Sound. — At Port Wells, Coville and Kearney 

 (Xo. 1270), Trelease and Saunders (Xo. 3372), Brewer and Coe 

 (Xo. 136). 



Cook Bilet. — At several points between the head of Cook Inlet and 

 the Tanana River, E. F. Glenn, 1S99. Sparingly on the delta of a 

 glacier at Halibut Cove, Kachemak Bay, Coville and Kearney, Xo. 



2419)- ^ ^ 



Kadiak Island. — Sparingly on the lower mountain slopes in Eng- 

 lish Bay, Coville and Kearney (Xo. 1441). Xear Kadiak village, 

 Trelease and Saunders (X'^o. 3351), Brewer and Coe (Xo. 223). 



Shumagin Islands. — Sparingly at Sand Point and in other localities 

 on Popof and Unga, Coville and Kearney (Xo. 1622), Trelease and 

 Saunders (Xo. 3343), M. W. Harrington, 187 1-2. At Mist Har- 

 bor, Xagai Island, C. H. Townsend, 1893. 



Alaska Peninsula. — At Kukak Bay, Coville and Kearney (Xo. 

 1622), Trelease and vSaunders (Xo. 3350) ; in Stepovak Bay, Palache ; 

 and at Xushagak, C. L. McKay, 1881. 



Yukon Valley. — Headwaters of Koyukuk River, F. C. Schrader, 

 1899. At Rampart House, on the Porcupine River, Frederick Funston, 

 1S94 (Xo. 175). At Dawson, Yukon Territory, R. S. Williams, 1899. 



Proc. Wash. Acad. Sci., August, 1901. 



