360 GEOLOGICAL SURVEY OF CANADA. 



in peaty soil by a small pond in company with S. Brownii.. South 

 Twin Island, James Bay, July 17th, 1887. (J. M. Macoun.) 



(2046.) S. speciosa, Hook. Am. ; Macoun, Cat. TIL, 454. 



Upper Liard Kiver, N.W.T., Lat. 60. (Dawson.) Fifty miles below 

 Good Hope, Mackenzie Kiver, 1888. (McConnetl.) " Forks of Dean 

 Kiver, 8 to 12 feet high." (Dr. Richardson.} 



(3182.) S. macrocarpa, Nutt. 



Very common in wet thickets in the district around Victoria, Van- 

 couver Island, 1887. (Mdcoun.} 



(3183.) S. monticola, Bebb; Coutler, Man. Kock. Mount. PI. 336. 



" Leaves oblong-lanceolate, the earliest obovate, acute 3 to 6 inches 

 long, 1 to 1 J inches wide, glabrous, rigid and glaucous beneath, or thin 

 and pale beneath, unevenly crenate or serrulate ; stipules large, semi- 

 cordate, acute ; buds large, ovate and beaked at the tip ; aments thick, 

 densely flowered, sessile ; males closely so ; females with a few broad 

 bracts at base, when in flower about an inch long, lengthening in fruit 

 to 1 J to 2 inches ; scales oval, obtuse, clothed with long yellowish-white 

 silky hairs ; capsules ovate-conical, glabrous, sessile or nearly so ; style 

 elongated ; stigmas erect, bifid or entire. A densely cespitose shrub, 

 8 to 12 feet high, stem 1 to 2 inches in diameter." Old Man River, 

 Rocky Mountains, Aug. 14, 1883. (Dawson.} These specimens were 

 referred to S. Barrattiana in Part III., 445. A few fragments of what 

 has been considered this species were collected on the Rocky Mountains 

 at Kicking Horse Lake, July, 1885. (Macoun.} 



(3184.) S. commutata, Bebb., Bot. Gaz., XIII., 110. 



" A diffuse alpine shrub of variable stature, commonly 3 to 4 feet in 

 height, in sheltered localities 8 to 10 feet, often much dwarfed by 

 altitude and exposure ; leaves broadly oblanceolate or oblong, abruptly 

 pointed, cuspidate, tapering toward the roundish base, at first covered 

 more or less with a dense silky tomentum, downy even when fully 

 grown ; older and lower leaves becoming smooth, green both sides (not 

 glaucous beneath), margin entire or (under a lens) minutely glandular- 

 eerrulate ; leaves of sterile shoots ample, 3 to 4 inches long, varying to 

 cordate-ovate, thinnish in texture ; stipules large, ovate, glandular- 

 serrate ; aments on stout leafy peduncles, with 4 to 7 ovate or oblance- 

 olate leaves, erect, densely flowered, an inch long ; fertile in fruit 2 

 inches, compact cylindrical ; scale thin, pale or brownish, obtuse, 



