]546 ARBORETUM AND FRUTICETUM. PART III. 



barren as well as fertile individuals, of both species, agreeing exactly together 

 in other respects, and differing alike from correlative ones of the other spe- 

 cies, are now well known. In size and general habit, this most resembles 

 S. glauca; but their discriminative marks are clearly discernible. The leaves 

 of S. arenaria are rather smaller and shorter, more precisely ovate, with a 

 little sharp point ; their upper surface dark green, reticulated with sunk 

 veins, and clothed with thin cottony down, more dense and soft upon the 

 young ones ; the under side pure white, with dense cottony wool ; the veins 

 prominent ; midrib reddish ; the young leaves, as well as the floral ones, beau- 

 tifully silky beneath. (Id.) Mr. Forbes states that he has plants of this willow 

 with leaves not above half the size of those of others, owing to their being 

 planted in a different soil ; which will show, he says, " how much culture 

 improves the size of these species of plants." 

 ? Variety. 



* S. a. ? leucophylla ; S. leucophylla Schleicher. (Borrer in a letter.) 

 Koch has cited S. leucophylla WUld. Enum. Suppl., p. 66., BcrL 

 Baumz., p. 444. t. 6. f. 3., as a state of S. limosa Wahlenb., distin- 

 guished by having the under surface of the leaves less snowily 

 tomentose : perhaps this is the same as Schleicher's. 



-* 66. S. OBOVA^TA Pursh. The obovate-/em/, or Labrador, Willow. 



Identification. Pursh FL Amer. Sept., 2. p. 611. ; Smith in Rees's Cyclo., No. 91. ; Forbes in SaL 

 Wob., No. 144. 



The Sexes. The male is noticed in the specific character. 



Engravings. SaL Wob., No. 144., a leaf; andfig. 144. in p. 1630. 



Spec. Char., tyc. Stem diffuse. Leaves obovate, obtuse, entire ; glabrous above, clothed with silky 

 hairs beneath. Stipules none. Catkins sessile. Bracteas obovate, black and hairy at the end. Native 

 to Labrador, and to the north-western coast of America. Flowering in May. Allied to S. arenaria 

 L., and somewhat inclined to be upright. Stamens two. (Pursh.) Whether introduced, or not, 

 is uncertain. 



? j* ? 67. S. CANE'SCENS WUld. The greyish Willow. 



Identification. Willd. Sp. PI., 4. p. 687. ; ? Enum. ; Smith in Rees's Cyc>o., No. 86. 



Synonyme. S. limbsa Wahlenb. var., Koch Comm., p. 55. 



The Sexes. The female is noticed in Willdenow's description. 



Spec. Char., 8fc. leaves oblong-lanceolate, acute, slightly serrated in the middle part'; glabrous and 

 glossy on the upper surface, white and tomentose on the under one. Capsules ovate, tomentose. 

 ( Willd.} Willdenow describes it more particularly from a female dried specimen, as follows : - 

 Branches brown, rather downy when young. Leaves 2 in. to 3 in. long when young ; canescent on 

 the upper surface. Stipules not apparent. Catkin of the female cylindrical, 1 in. long. Capsule 

 sessile. Native country not known with certainty ; though in Sweet's Hort. Brit., ed. 1830, S. 

 canescena WUld, Enum. is stated to be a native of Germany, introduced into Britain in 1815. 



68. S. STU\RTIA^NA Smith. Stuart's, or the small-leaved 

 shaggy, Willow. 



Identification. Smith Eng. Bot., t. 2586. ; Smith in Rees's Cyclo., No. 84. ; Eng. FL, 4. p. 203. ; Forbes 



in SaL Wob., No. 72. ; Hook. Br FI., ed. 2., p. 419. 

 Synonymes. S. arenaria masculina Smith Fl. Brit., p. 1059., Eng. Bot., 1. 1809. the text ; S. Lap- 



ponum Walker ; S. limbsa Wahl. var. foliis angustMribus lanceolatis Koch Comm., p. 55. 

 Derivation. S. Stuart/dwa " was named in compliment to one of the best men, and most learned 



scholars, that Scotland has produced, the late Rev. Dr. Stuart of Luss." (Hook. Br. Fl., ed. 2., 



1831.) 

 The Sexes. Both sexes are described in Eng. Flora : the female is figured in Eng. Bot., and in Sal. 



Wob. 

 Engravings. Eng. Bot., t. 2586. ; Sal. Wob., No. 72. ; andfig. 72. in p. 1617. 



Spec. Char., $c. Leaves nearly entire, ovate-lanceolate, acute ; shaggy above, 

 densely silky, somewhat cottony, beneath. Style as long as the almost ses- 

 sile woolly germen. Stigmas capillary, deeply divided, the length of the 

 style. (Smith E. F.) A native of Scotland, on the Breadalbane Mountains ; 

 where it flowers in June, and, in gardens, in July and August. Bushy, and 

 copiously branched ; 2 ft. or 3 ft., or rather more, in height. The branches 

 dark brown ; downy when young, and leafy, cottony or silky at the tops. 

 Leaves scarcely half the size of those of S. glauca and . arenaria, and more 

 lanceolate; rarely somewhat obovate, sharp-pointed; sometimes slightly 

 wavy or toothed ; the upper surface greyish green, shaggy or silky, partly 

 denudated by culture, always very even, not wrinkled or veiny ; the under 



