CATALOGUE. 325 



lound from New England to Missouri and the Saskatchewan and northward 

 to the Arctic coast ; Oregon and Colorado. Frequent through Nevada and 

 Utah ; 4-7,000 feet altitude. Various forms occur in the collection, more 

 or less distinct ; the present with leaves 3-6' long and 6-18" wide, rounded 

 or subcuneate at base, very long acuminate, finely serrulate, glabrous, glau- 

 cous beneath ; stipules often large and serrate ; aments 1-3' long, on rather 

 long peduncles. Becoming a small tree, 15° high and 18' in diameter, with 

 usually slender virgate branchlets and rather clark-green bark. (1,095.) 



Var. Leaves lJ-3' long, 6-12" wide, mostly rounded at base, very 

 short-acuminate, serrulate or nearly entire, occasionally subvillous beneath ; 

 aments 1' long, on short peduncles. Usually about 8° high, less virgately 

 branched than the last. (1,096.) 



Var. (?) Leaves still smaller, 1-2' long, 4-9" wide, mostly subacute 

 at base, acute or short-acuminate at the apex, entire or subserrulate, 1' or less 

 in length, on short peduncles. 6-15° high, and occasionally 12-18' in diam- 

 eter, diffusely branching, the branchlets short and divaricate ; bark light yel- 

 lowish-green. Of well-marked habit, and perhaps a distinct species, but 

 seems to be united through the last variety with the true cordata. (1,097.) 



S. (?) Allied to 8. cordata. Fertile aments (2' long) on short and 



leafy densely villous peduncles, densely flowered ; scales dark, orbicular, en- 

 tire, very villous both sides, twice longer than the gland and about half as 

 long as the slender pedicel (1" long ;) capsule long, conical, glabrous ; style 

 rather slender; stigmas entire, suberect ; leaves li' long, 3-5" wide, spatu- 

 late, narrowed to the base, on short (1-1 J") petioles, obtuse or subacute, 

 entire, densely covered with a short silky pubescence when young, wholly 

 glabrous and rather thick when old. 6-8° high ; stipules obsolete. Found 

 in a mountain canon near Carson City, Nevada, where it was also collected 

 by Anderson (11 ;) strongly marked, but not identified. (1,098.) 



Salix glauca, L. DC. Prod. 16. 2. 280. Aments leafy, peduncled, cylin- 

 drical, subdensely flowered ; scales acutish or obtuse, tawny at base and 

 darker above, villous with long white hairs ; capsules ovate-lanceolate, rather 

 obtuse, densely white-tomentose, scarcely or shortly pedicelled, the pedicel 

 equaling the nectary ; style produced, usually bifid, the lobes of the stigma 

 divaricate ; leaves elliptic-lanceolate, usually silky-villous both sides, entire. — 

 Arctic America; Rocky Mountains of Colorado. Var. pullata, And. Leaves 

 becoming glabrous above, more or less villous and glaucous beneath, variable 



