170 FOREST TREES OF NORTH AMERICA. 



Var. Scouleriana, Bebb ; 

 -Coulter's Bot. Gazette, vii, 129. 



S. brachystachys, Bentham, Pi. Hartweg. 3.36. Andersson in Ofv. af. Vet. Akad. Forh. 1858, 121 (Proo. Am. Acad, iv, 61) ; 

 Kongl. Sven. Akad. Handl. vi, 82, f. 48 ; De Candolle, Prodr. xvi^, 224. 



S. Scouleriana, Barratt in Hooker, Fl. Bor.-Am. ii, 145, in part. Cooper in Paeific R. R. Rep. xii, 29. 



S. brachystMchys, var. Scouleriana, Andersson in De Candolle, Prodr. xvi', 224. 



S. flavescens, Bebb in Bot. California, ii, 86, in part. 



BLACK WILLOW. 



Eadiak island, Alaska {Kellogg), southward through British Columbia, western Washiugton territory, and 

 Oregon to Santa Barbara, California. 



A small tree, 8 to 9 meters in height, with a trunk rarely 0.60 meter in diameter ; uplands, near springs or 

 streams, or often in quite dry soil; common and reaching its greatest development near the shores of Puget sound. 

 Wood light, hard, strong, tough, close-grained, compact ; meduUarj- rays numerous, very obscure ; color, light 

 red, the sap-wood brown ; specific gravity, 0.5412 ; ash, 0.39. 



314. Salix Hookeriana, Barratt; 



Hooker, Fl. Bor.-Am. ii, 145, t. 180. Nuttall, Sylva, i, 64; 2 ed. i, 80. Anderason in Ofv. af. Vet. Akad. Forh. 1858, 119 (Proc. Am. 

 Acad, iv, 59); De Candolle, Prodr. xvi', 274. Walpers, Ann. v, 747. Macoun in Geological Rep. Canada, 1875-'76, 210. 



Grand rapids of the Saskatchewan {Douglas) ; coast of Washington territory and Oregon. 



A small tree, 8 to 9 meters in height, with a trunk rarely 0.30 meter in diameter, or more often a low, straggling 

 shrub with many prostrate stems ; on the coast generally along the edge of sea-beaches, or in low, rather moist, 

 sandy soil. 



Wood light, soft, close-grained, compact, containing many minute open ducts ; medullary rays thin, very 

 obscure; color, light brown tinged with red, the sap-wood nearly white ; specific gravity, 0.5350 ; ash, 0.32. 



315. Salix cordata, var. vestita, Andersson, 

 Kongl. Sven. Akad. Handl. vi, 159 ; De Candolle, Prodr. xvi, 252. 



DIAMOND WILLOW. 



Valley of the Missouri river and its tributaries, Fort Osage, Missouri {Prince Neincied), Iowa, Nebraska, and 

 ^vestward to about the one hundred and tenth degree of longitude. 



A small tree, rarely 8 meters in height, with a trunk 0.15 to 0.20 meter in diameter, or more often a straggling 

 -shrub not exceeding 1.80 to 3 meters in height; low bottom lands, in wet, sandy soil. 



Wood light, soft, close grained, compact, the annual layers of growth clearly defined ; medullary rays very 

 obscure; color, brown or often tinged red, the sap-wood nearly white; specific gravity, 0.6069; ash, 0.59; heavier 

 than that of other species examined, and largely used for fence posts, being said to equal, when thoroughly seasoned, 

 red cedar in durability in contact with the soil. 



NOTK. The typical <Sa{>x cordata, Muhlenberg, of wide distribution through the Atlantic region, rarely, if ever, attains arborescent 

 I'size or habit. 



316. Salix lasiolepis, Bentham, 



PI. Hartweg. 335. Cooper in Sniithsonian Rep. 1858, 261. Andersson iu Ofv. af. Vet. Akad. Forh. 1858, 118 (Pic. Am. Acad, iv, 58) ; D 

 Candolle, Prodr. xvi', 264. Walpers, Ann. v, 747. Vasey, Cat. Forest Trees, 29. Bebb in Bot. California, ii, 86. 



S. lasiolepis, var. Bigelovii, Bebb in Bot. California, ii,86 (a vernal state, teste Bebb in lit.). 



S. Bigelovii, Torrey in Pacific R. R. Rep. iv, 139. Andersson iu Ofv. af. Vet. Akad. Forh. 1858, 118 (Proc. Am. Acad, iv, 58) ; 

 Kongl. Sven. Akad. Handl. vi, 163, f. 94; De Candolle, Prodr. xviS 255. Walpers, Ann. v, 747. 



& Bigelorii, VSkT. fuseior, Andersson in Kongl. Sven. Akad. Handl. vi, 163; De Candolle, Prolr.xvi, 255. 



8. , ? Watson in King's Rep. v, 325. 



S. lasiolepis, var. fallax, Bebb in Bot. California, ii. 86. 



