170 FOREST TREES OF NORTH AMERICA. 



Var. Scouleriana, Bcbb; 

 Coulter's Bot. Gazette, vii, 120. 



8. brachystachys, Bentham, PI. Hartweg. 336. Andersson iu Ofv. af. Vet. Akad. Forh. 1858, 121 (Proc. Am. Acad. iv, 61) ; 

 Kongl. Sven. Akad. Handl. vi, 82, f. 48 ; De Candolle, Prodr. xvi 2 , 224. 



8. Scouleriana, Barratt iu Hooker, Fl. Bor.-Aiu. ii, 145, in part. Cooper in Pacific R. R. Rep. xii 2 , 29. 

 8. Irachystachys, var. Scouleriana, Andersson in De Candolle, Prodr. xvi*, 224. 

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



BLACK WILLOW. 



Kadiak island, Alaska (Kellogg), southward through British Columbia, western Washington territory, and 

 Oregon to Santa Barbara, California. 



A small tree, 8 to 9 meters iu 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 ; medullary 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.-Ain. ii, 145, t. ISO. Nuttall, Sylva, i, 64; 2 ed. i, 80. Andersson in Ofv. af. Vet. Akad. Forh. 1858, 119 (Proc. Am. 

 Acad. iv, 59); De Candolle, Prodr. xvi 2 , 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 s , 252. 



DIAMOND WILLOW. 



Valley of the Missouri river and its tributaries, Fort Osage, Missouri (Prince Neuwied), Iowa, Nebraska, and 

 westward 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 iu contact with the soil. 



NOTE. The typical Salix cordata, Muhlenberg, of wide distributiou through the Atlantic region, rarely, if ever, attains arborescent 

 size or habit. 



316. Salix lasiolepis, Bentham, 



PI. Hartweg. 335. Cooper in Smithsonian Kep. 1858, 261. Andersson in Ofv. af. Vet. Akad. Forh. 1858, 118 (Proc. Am. Acad. iv, 58) ; De 

 Candolle, Prodr. xvi 2 , 264. Walpers, Ann. v, 747. Vasey, Cat. Forest Trees, 29. Bebb in Bot. California, ii, 86. 



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



8. Bigelovii, Torrey in Pacific R. R. Rep. iv, 139. Andersson in Ofv. af. Vet. Akad. Forh. 1858, 113 (Proc. Am. Acad. iv, 58) ; 

 Kongl. Sven. Akad. Handl. vi, 163, f. 94 ; De Caudolle, Prodr. xvi 2 , 255. Walpers, Ann. v, 747. 



8. Bigelovii, var./wm'or, Andersson in Kongl. Sven. Akad. Handl. vi, 163: De Candolle, Prodr. xvi ! , 255. 

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



\ 



S. losiolepis, var. /a/to, Bebb in Bot. California.il. 86. 



