396 BOTANICAL GAZETTE [NOVEMBER 
KEY TO THE SPECIES 
Capsule glabrous 
Scales yellow 
Leaves large, lanceolate, serrate; stamens 3-5 
LORVON PIGUCOUS NODEATE 26 i ke ee 1. S. amygdaloides. 
EiORVGS BOOT DORNBER coy. os es bk eee ee ove be 2. S. Fendleriana. 
Leaves linear; stamens 2 : 
5 
eaves green beneath, remotely denticulate........... 3. S. fluviatilis. 
Scales brownish to black 
Aments short-peduncled; twigs yellow; style less than o. 5 mm. 
4. S. lutea. 
Aments sessile; twigs reddish; style 1 mm. or over...... 5. S. monticola. 
Capsule hairy 
Style long; scales usually black, pilose 
Aments peduncled; leaves gray pubescent above......... 6. S. glaucops. 
Aments sessile; leaves bright green above, glabrous 
Leaves broadly Cninticns OC Olak 22555 Sate es ay ‘3 chlorophylla. 
SeaCes NAMOWY GDUCAl Soo si as ee ss . S. Nelsonit. 
Style short or none 
Scales obovate, black, pilose; aments sessile 
Leaves elliptical, undulate-crenate, glabrous. .........9. S. prinoides. 
Leaves obovate, entire, often pubescent beneath...10. S. Scouleriana. 
Scales linear-oblong, yellow or the tip dark; aments short peduncolte 
Leaves elliptic-obovate; pedicels long............... 11. S. Bebbia 
Leaves linear-oblanceolate; pedicels short.......... 12. 5. Goatih 
SPECIMENS EXAMINED 
The following specimens have been examined by the writer. 
Their present location in herbaria, so far as known, is indicated 
by the letters following the collection numbers. The key to these 
letters is: B, Herb. C. R. Batt; C, Herb. Canada Geol. Survey; 
F, Herb. U.S. Forest Service; G, Gray Herbarium; I, Herb. lowa 
State College; M, Herb. Jonn Murpocn, Jr.; N, U.S. National 
Herbarium; R, Rocky Mountain Herbarium. 
1. Salix amygdaloides Anderss. 
BELLEFOURCHE.—Floodplain of Bellefourche River, Ball (1341, B, C, 
N, R) 1908; (1697, B; 1699, B) toro. 
Deapwoop.—Whitewood Creek below Smelter, alt. 1370m., Murdoch 
(4322, M) 1910. 
