1546 ARBORETUM AND FRUTICETUM. P ART 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 

 \ oung ones ; the under Bide 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." 



f Variety* 



• S. n. f leucophylla ; S. leucophylla Schleicher. (Borrcr in a letter.) — 

 Koch has cited S. leucophylla Willd. Enum. Suppl., p. 66., JBerl. 

 Baumz., p. 444. t. 6. f. 3., as a state of S. limdsa 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 v ta Pursh. The oX)0\aXe.4caved, or Labrador, Willow. 



Identification. Pursh FL Airier. Sept., 2. p. 611. ; Smith in Rees's Cycle, No. 91. ; Forbes in Sal. 

 Wob., No. 144. 



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



ings. Sal Wob., No. 144., a leaf; and fig. 144. in p. 1630. 



Spec Chor.,8fC Stem diffuse. Leaves obovate, obtuse, entire; glabrous above, clothed with silky 

 hair* beneath. Stipules none. Catkins sessile. Kracteas 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 

 /.., and somewhat inclined to be upright. Stamens two. (PurshJ Whether introduced, or not, 

 is uncertain. 



? j* ? 2k 67. S. cane'scens Willd. The greyish Willow. 



/-/ ■ ntijirntiun. Willd. Sp. PL, 4. p. 687. ; ? Enum. ; Smith in Rees's Cyclo., No. 86. 

 at/me. S. limbsa Wahlenb. var., Koch Comm., p. 55. 

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

 S/» -r. Char., tyc. Leaves oblong-lanceolate, acute, slightly serrated in the middle part ; glabrous and 

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

 WilbL Wdldcnow 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 

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

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



* 68. 8. Sti artL4\v,4 Smith. Stuart's, or the small-leaved 

 shaggy, Willow. 



r Smith Eng. Dot., t. 2586. ; Smith in Rees's Cycle, No. 84. ; Eng. FL, 4. p. 203. ; Forbes 

 in Sal Wob., No. 72. ; Hook. Br FL, ed. 2., p. 419. 



aren iria mascullna Smith /•'/. Brit., p. 1059., Eng. Bot., 1. 1809. the text ; 8, Lap- 

 pomim Walker ; 8. limbaa Hah/, var. folds angustioribus lanceolatis Koch Comm., p. So. 

 Derivation. 8 Stu&rtiana " wa- named in compliment to one of the best men, and most learned 

 thai Scotland has produced, the late Rev. Dr. Stuart of Luss." {Hook. Br. FL, ed. 2., 



xes are described in Eng. Flora : the female is figured in Eng'. Bot., and in Sal. 

 Wob. 



I Bot, t. 2086. ; Sal. Wob., No. 7L \ VOAfig. 72. in p. 1617. 



Spec. Char. 9 Sfc. Leaves nearly entire, ovate-lanceolate, acute; shaggy above, 



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



WOoWy germen. Stigmas capillary, deeply divided, the length of the 



style. (Smith 11. F.) A native oi Scotland, on the Breadalbane Mountains ; 



• flowers in .June, ;md, in gardens, in July and August. Bushy, and 

 (opiou-.l'. branched ; 2ft. or 3ft., or rather more, in height. The branches 

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

 I. rcely half the size of those of S. glauca and 8. arenaria, and more 



l;iri' < ••:.'' ; rarelj omewhat obovate ( sharp-pointed; sometimes slightly 



01 toothed, the upper mrface greyish green, shaggy or silky, partly 



culture, always very even, not wrinkled or veiny j the under 



