128 SYNOPSIS OF THE FLORA OF COLORADO. 



SAL.ICACE.E. 



SALIX NIGRA, Marsh., var. AMYGDALOIDES, Anders. DC. Prod., 16, 2d 

 pt., p. 201. Fertile aments spreading, thiekish; scales sparingly pilu ,< ; 

 leaves broadly lanceolate, long and sharply attenuate-acuminate, of leu 

 subfalcate, very smooth, glaucous beneath ; capsules long-pedicel< j d, 

 very glabrous. * Eesembles S. lucida. A shrub or small tree, conn u>.i 

 along the PI a tte. Dr. Smith; Porter. 



SALIX LONGIFOLIA, Muhl., var. ARGYROPHYLLA, Xutt. DC. Prod, 

 16, 2d pt., p. 214. Leaves and capsules clothed with a silvery-shining 

 tomeutum, becoming glabrate with age, Banks of the Platte, Dr. Smith ; 

 B. H. Smith; Porter. Twin Lakes, Coulter. 



SALIX DISCOLOR. Muhl. Twin^Lakes, at 10,000 feet altitude, Coulter. 



SALIX LIVIDA, Wahl., var. OCCIDENT ALIS, Gr. (S. rostrata, Richards.) 

 Hall & Harbour, 522. Saint Train Canon, Coulter. 



SALIX CHLOROPHYLLA, Anders. Twin Lakes and Mount Lincoln, at 

 11,000 feet altitude, Coulter. 



SALIX CORD AT A, Muhl. Hall & Harbour, 524. Near Denver, Coulttr. 



Var. ANGUSTATA, Anders. Bear Creek, 15 miles west of Denver, 

 Coulter. 



SALIX GLAUCA, L. DC. Prod., 16, 2d pt,, p. 280. Shrub of variable 

 height, often low: aments leafy-peduneled, cylindrical, thickish, rather 

 dense-flowered; scales acutish or obtuse, fulvous, darker at the apex, vil- 

 lous with long white hairs; capsules ovate-lanceolate, obtusish, densely 

 snowy-torn entose, scarcely pedicelled; pedicel about the length of the 

 nectary; style produced, usually bifid; divisions of the stigmas divari- 

 cate; leaves elliptical-lanceolate, mostly silky-villous 011 both sides, be- 

 coming somewhat glaucous beneath, veiny, entire. 



Var. SERICEA, Anders. Leaves pilose with silvery hairs, broadly oval, 

 ovate, obovate or lanceolate, acute or obtuse, l'-2' long. " Subalpine,'" 

 Hall & Harbour, 523. Gray's Peak, Dr. Smith. Mount Lincoln, at 13,000 

 feet altitude and White House Mountain, Coulter. South Park, Porter. 



Var. PULLATA, Anders. Leaves smoother, glaucous beneath. Ute 

 Pass and South Park, Porter. Mount Elbert near Twin Lakes, at 12,000 

 feet altitude, and Sierra Madre Eange, Coulter. 



SALIX DESERTORUM,Bichards. DO.Prod.,16,2d pt.,p.281. Low,2-3 

 high; aments very short, 6" long, subglobose, dense-flowered; scales 

 pale rose-color, densely white- villous; capsules ovate, conic, white- 

 woolly, sessile; style 2-parted, brown; leaves narrowly oblong, 6"-12" 

 in length, 2 // -4 // wide, obtusish, rigid, more or less white-tomentose be- 

 neath, midrib prominent, yellow ; staminate ameiits very small, 2 // -4 // 

 jong. Mount Elbert, near Twin Lakes, Porter. 



SALIX ARCTICA, Pall., var. BROWNEI, Anders. DC. Prod., 16, 2d pt., p. 

 286. Dwarf, branches decumbent and much spreading; leaves spatulate- 

 oblong, oblong, or oblong-elliptical, about V long; aments lateral and sub- 

 terminal, short, 6"-8" long, on long, leafy peduncles; capsules mostly 

 grayish-tomentose; style elongated; leaves nearly smooth or hairy, en- 

 tire or remotely serrulate, pale and very veiny beneath. Hall & Har- 

 bour, 520; Parry. Gray's Peak, Dr. Smith. White House Mountain, at 

 13,000 feet altitude, Coulter. 



SALIX RETICULATA, L. DC. Prod., 16, 2d pt., p. 301. Decumbent, 

 rather stout; branches leafy at the summit; auieut terminal, very long- 

 peduncled, densely flowered, narrowly cyliudric; peduncle leafy; scales 

 yellowish -pink, rounded ovate; capsule oval-ovate, sessile, hoary to- 



