334 



COVILLE 



and size to tnose of ovalifolia have the reticulations of the veins much 

 less conspicuous on the back at maturity, and the capsules of stoloni- 

 fera are not glaucous. Salix ovalifolia is a characteristic species of 

 the Bering Sea and Alaska Peninsula region, though found sparingly 

 to the eastvs^ard as far as Yakutat Bay, w^hile stolonifera is a species 

 of eastern Alaska, in the glacier region from Yakutat Bay to Glacier 

 Bay and Lynn Canal. 



Stolonifera is evidently the species to which Dr. Rydberg has re- 

 cently applied, mistakenly as I believe, the name unalaschcensis of 

 Chamisso.^ From the original description of Chamisso^ the following 

 characters of unalaschcensis are abstracted : plant prostrate, with 

 branches a foot long ; leaves obovate, subglaucous beneath, entire 

 (this last character drawn by inference from Chamisso's comparison 

 of his plant with Salix arctica Pall.) ; ovaries smooth. This would 

 identify the plant with ovalifolia^ or fuscescens^ or stolonifera. The 

 additional character ''stylo elongato" excludes y^/^c^^c^/^i", and it is 

 doubtless this same phrase that led Dr. Rydberg to identify Chamisso's 

 plant with the very long-styled stolonifera. But as stolonifera is not 

 known w^ithin more than a thousand miles of Unalaska, as the long 

 creeping branches are characteristic of ovalifolia.^ while they are not 

 characteristic of stolonifera^ and as "elongated" is a relative term, 

 it is reasonable to conclude that Chamisso had in hand not stolonifera 

 but ovalifolia. For further remarks on the name Salix unalasch- 

 censis., see the account of Salix ovalifolia. 



Specimens of stolo?zifera have been examined as follows : 

 Juneau. — From the mountains above Silver Bow Basin, Grace E. 

 Cooley, 1 89 1. From the mountains east of Juneau, at an altitude of 

 2500 to 3000 feet, F. A. Walpole, 1900 (Nos. 1232, 1242). 



White Pass. — From the summit of White Pass, about 3000 feet 

 altitude, R. S. Williams, 1S99, F. A. Walpole, 1900 (No. 1249), 

 and at the railway station of Glacier, between Skagway and White 

 Pass (No. 1075). 



Glacier Bay. — On the gravel deposits near the foot of Muir Glacier, 

 Coville and Kearney (Nos. 621a, 627), Trelease and Saunders (Nos. 

 3433' in part, 3434, 3435, in part, 3437, 3439, 3449 to 3452), Brewer 

 and Coe (No. 51), Walter H. Evans, 1897 (^<^- ^S^)- 



Takutat Bay. — Near Hidden Glacier, Trelease and Saunders (Nos. 

 3412, 3413). At Hubbard Glacier, Coville and Kearney (No. 1079). 



1 Rydberg, Bull. N. Y. Bot. Gard. i : 275. 1S99. 



2 Cham. Linnaea 6 : 541. 1831. 



