194 SALICACEAE 



29. S. commutata Bebb. A diffuse shrub 1-3 m. high; branches villous 

 when young; leaves broadly oblanceolate or oblong, abruptly pointed; aments 

 on short leafy branches, 2-4 cm. long; bractlets woolly; capsule about 5 mm. 

 long, greenish or reddish; stipe short; style about 1 mm. long. Alpine and sub- 

 alpme bogs: Ore.— Ida.— B.C. Mont.— Alp. Jy-Au. 



30. S. Tweedyi (Bebb) Ball. A tall shrub; twigs at first pubescent with 

 gray hairs; leaf-blades acute or obtuse at the apex, from acute to subcordate at 

 the base yeUowish green above, paler beneath ; aments sessile and naked, ap- 

 pearing before the leaves, 4-6 cm. long; bractlets obovate, black, white-silky; 

 capsule green; stipe 1 mm. long; style 1.5-2.5 mm. long. Mountains: Mont.— 

 Wyo. Je-Jl. 



31. S. conjuncta Bebb. A shrub 1-4 m. high; leaf-blades elliptic or 

 obovate, 3-4 cm. long, or on the young shoots 5-10 cm. long, acuminate or acute 

 at the apex, acute or rounded at the base, glabrous or slightly floccose when 

 young; aments on leafy peduncles, 3-5 cm. long; bractlets dark, acute, white- 

 yiUous; stipe and style about 1 mm. each. Wet mountain meadows: Wash.— 

 Mont. — -Alaska. Subalp. Jl-Au. 



32. S. padophylla Rydb. A shrub 1-7 m. high; leaf-blades oval or broadly 

 elliptic, crenate, short-acute or obtusish, rounded at the base, 3-5 cm. long; 

 pistillate aments 3-4 cm. long, densely flowered, borne on very short branches; 

 bractlets obovate, fuscous, covered on the outside with white wool; capsule about 

 b mm. long; style about 1.5 mm. long; staminate aments ahnost sessile, 2-3 

 $?Vt°^?V '^- Vqdyolia Rydb., not Anders. Cherry Willow. River banks: 

 N.M.— :Mont.— Utah. Suhmont.—Mont. My-Je. 



33. S monticola Bebb. A shrub 2.5-3.5 m. high; leaf-blades lanceolate 

 to obovate, acute or acuminate, 8-15 cm. long, glabrous, pale or glaucous be- 

 neath, serrate or crenate; aments thick, 2-3 cm. long; bractlets oval, silky with 

 long hairs; capsule sessile or nearly so. Along streams: Colo.— Alta. Suh- 

 mont. — Mont. Je. 



'^^r^'^J^^^e^eS'^'^ ^I^o^X^rTSa^^"-^^^ ^^^^ °^ '"^^ forSlh?SpTi§S 



34. S. curtiflora -Inders. A tall shrub; twigs yellowish or rarely purpUsh; 

 leaves oval-oblong or oblong-lanceolate, acute or short-acuminate at the apex, 

 rounded or rarely subcordate at the base, green and shining above, glaucous 

 beneath, finely serrate, 4-8 cm. long; bracts black, white-pilose; capsule long- 

 rostrate; stipe rery short; stamens light yeUow. S. pseudo-cordata Anders. 

 Wet places: Sask.— Colo.— Alta. Submont. :My-Jl. 



35. S. pseudomyrsinites Anders. A shrub 1 m. high or less; leaf-blades 

 obovate or oblanceolate, 2-6 cm. long, 8-25 mm. wide, light green on both sides; 

 aments on short leafy branches, 2-4 cm. long; bracts obovate, fuscous white- 

 yiUous; capsule 4-5 mm. long; stipe about 1 mm. long; style about 0.5 long 

 Mountain bogs: Lab.— Que.— Wyo.— Ore.— Alaska. Subalp.— Mont. Je-Jl. 



36. S. myrtillifolia Anders. A shrub 1-6 dm. high; leaf-blades obovate, 

 oblanceolate or oval, 1-3 cm. long, acute to rounded at the base; aments on short 

 leafy branches, 1-3 cm. long; bractlets fuscous, obovate, glabrous, or villous only at 

 the base; capsule 4-5 mm long; stipe scarcely 1 mm. long; style minute. Blue- 

 berry ^\ illow. ^et places: Alaska— Alta.— Mack. Alp.— Subalp. My-Je. 



37. S. Wolfii Bebb A low shrub, less than 1 m. high: leaf-blades oblong 

 or elhptic acute at both ends, 2-3 cm. long, 7-10 mm. wide, entire-margined; 

 aments subsessile but usually subtended by a few small leaves, 1-2 cm long 

 almost 1 cm. thick; bractlets very dark, sparingly villous; capsule 4-5 mm. long 

 subsessile; style fully 1 mm. long. Mountain valleys: Colo.— Wye— Ida 

 Mont. — Alp. My-Jl. 



38. S. irrorata Anders A shrub 2-3 m. high; leaf-blades hnear-lanceolate. 

 6-10 cm. long, glabrous, bright green and shining above, pale and glaucous 

 beneath, remotely serrate or entire; aments subsessile, usually naked appearing 



