ARBORETUM AND PRUTICETUM. PART III. 



truly British ; but there seems no reason why, like several other willows, 

 it may not grow wild in Europe as well as in North America; and the au- 

 thorities above mentioned are not likely to be erroneous." (Smith.) " 1 have 

 never seen native specimens." (Hooker in Br. Fl.) 



!. X PENNSYLVA'NICA Forbes: The Penusylvanian Willow. 



•- v. Forbes in Sal. Wob., No. 95. 



Is not tlii* the same as X. petiolaris Smith \ or, perhaps, it is the S. grfsea Willd. {Borrcr 

 in a Letter.] In Sweet's Bort. Brit., ed. 1830, it is questioned if S. pennsylvaniea Forbes be not iden- 

 tical with S. pedieellaris of Spreng. Syst, which is the S. pcdiccllaris Pursh. 

 7V Sexes. The male is described anil figured in Sal. Wob. 

 Engravings. Sal. Wob., No, 95. ; and our fig. 95. in p. 1620. 



Spec. Char., d/c. A bushy shrub. Leaves alternate, lanceolate, serrated; 

 smooth, glabrous, and shining above; densely clothed beneath with silky 

 silvery hairs. Stipules very minute, soon falling off. Catkins of the 

 male nearly 1 in. long, slender. Bractea oblong, hairy. Gland obtuse. 

 This kind, in its whole form and habit, bears a strong likeness to S. petiolaris 

 Smith ; but the silvery silkiness of the old leaves perfectly distinguishes 

 it. (Sal. IVob., p. 189.) A native of ? North America; flowering in 

 April. Introduced in (?) 1825. A low spreading shrub, with yellowish 

 green, round, villous, brittle branches. Leaves lance-shaped, varying from 

 3 in. to 5 in. in length, sometimes nearly 1 in. broad; dark green and 

 shining above ; beautifully silvery-silky beneath ; all the leaves of a thin 

 texture ; midrib pale, prominent, and slightly villous. Footstalks scarcely 

 ; \- in. long. Catkins appearing before the leaves, nearly sessile. Anthers 

 reddish before expansion ; afterwards yellow. There are plants in the 

 Goldworth Arboretum, and at Woburn Abbey and Flitwick House. 



ju 45. S. MuiilenbergL4\v,4 Willd. Muhlenberg's, or the brown American, 



Willow. 



Identification. Willd. Sp. PI., 4. p. 692. ; Pursh Fl. Amer. Sept., 2. p. 609. ; Smith in Rees's Cyclo., 

 No. 96. ; Forbes in Sal. Wob., No. 145. p. 278. ; Koch Comm., p. 21., note*. 



Synonymes. S. alpina Walt. Car.. 243. ; S. incana Michx. FL Bot: Amer., 2. p. 225. ; S. flava Schoepf. 

 Mat. Med. Amer. ; S. trlstis MUhlenb. Nov. Act. Soc. Nat. Scrut. Berol., 4. p. 241. t. 6. f. 9., Sims 

 and Kong's Aim. of Bot., 2. p. 68. t. 5. f. 9. 



es. both sexes are noticed in the specific character. 



Nov. Act. Soc. Nat. Scrut. Berol., 4. t. 6. f. 9. ; Ann. of Bot., 2. t. 5. f. 9., a leaf; Sal. 

 Wob., No. 115. ; and our fig. 145. in p. 1630. 



Spec. Char., fyc. Leaves lanceolate, sharpish, nearly entire, downy, revolute; veiny and rugose 

 beneath. Stipules lanceolate, deciduous. Bracteas oblong, fringed. Ovary ovate-lanceolate, 

 silky, stalked. Style short. Stigmas divided. The branches greenish yellow, with black dots. 

 Anthers purple, yellow when they burst. Bracteas white, tipped with red, giving the catkins a 

 very pleasing appearance {Pursh.) A shrub, 1 ft. to 4 ft. high, mostly decumbent. Leaves 1 in. long, 

 or more. It is indigenous in gravelly places in Pennsylvania and Canada {Willd.) ; or, according 

 to l'ursh, in shady dry woods, from New York to Virginia. Introduced in 1811, and flowering in 

 April. 



„* 40. S. TRl'sTIS Ait. The sad, or narrow-leaved American, Willow. 



Id, MtfflcaUon, Ait. Hort. Kew., ed. 1., 3. p 393. : Willd. Sp. PI., A. p. 693. ; Pursh Fl. Amer. Sept., 



i. p.C09. ; Smith in Bees' s Cyclo., No. 97. ; forbes in Sal. Wob., No. 150. p. 279. 

 1 Jal. Wob., No. 150., a leaf; and our fig. 150. in p. 1630. 



I 'kar., #c. Leaves linear-lanceolate, entire, revolute, acute at each end ; rather glabrous above, 

 rein* and downy beneath, stipules none. Catkins appearing before the leaves, and 

 Oblong. Approacl Miihlenbergt'dna. [l'ursh.) A native of North America, in dry 



| roods, from New Jersey to Carolina. Introduced in 1765, and flowering in April. 



* 47. 8. corda*ta MUhlenb. The heart-leaved Willow. 



n MUhlenb. in Nor. Act. Soc. Nat. Scrut. Berol., 4. p. 236. ; Willd. Sp. PL, 4. p. 666. ; 

 MQI et Kou Ann. of Bot. 2. p. 64. : Pursh Fl. Amer. Sept., 2. p. 615. j Smith in 



Wo. 30. ; Forbei in SaL Wob., No. 142. 



noticed in the specific character. 

 Nov. Act Soc. Nat Serut. BeroL, 4. t. 6. f. 3 ; Ann. of Bot., 15. f. 3. ; Sal. Wob., 

 U pi j and oat fig. 142. In p. 1630. 



I .„,-., fa Bl i red towards the end ; younger ones pubescent. Leaves ovate- 



,tii , above deep green, paler beneath, heart-shaped at the base. Stipules 



ithed Catkins accompanying the leaves. Stamens to a flower mostly 3. Flowers 



... (>. i, talked, lanceolate, smooth, Style the length of the divided stigmas. 



forth America, from New England to Virginia. Introduced iii [811, and 



, April and May. The young boot -i/e very tough, and are much used in America by 

 rub. about 0ft. I > n glabrous branches, and long leaves. 



. OoUlworth Arboretum 



