198 DIOECIA-DIANDRIA. Salix. 



siderable degree of rigidity, they cannot be pressed flat. Both 

 sides are finely veiny ; the under one somewhat glaucous. Foot- 

 stalks short and thick. Stipulas extremely minute, half-ovate. 

 A prominent tooth remains on the older branches, where each 

 footstalk stood. The leaves clearly distinguish this Willow from 

 every other, though the fructification shows an affinity to the 

 prunifolia and venulosn, next to which it ought perhaps to have 

 been placed; butWilldenowv.'as not acquainted with the catkins. 

 These are totally unlike the short ovate ones of the last, or the 

 following. 



33. S. Arbuscuia. Little Tree Willow. 



Leaves lanceolate, acute, obscurely toothed, smootliish ; 

 glaucous beneath ; silky when young. Branches downy. 

 Catkins ovate, erect. Gernien stalked, ovate-lanceolate, 

 silky. 



S. Arbuscula. Linn. Ft. Lapp. n. 360. ed. 2. 297. t. 8./. m. Sp. PI. 

 144.57. Willd.v.A.mi} Fl.Br.iObO. Engl. Bot.v. 19. 1. 1366. 

 Rees's Cijcl. n. 6.5. Wahlenh. Lapp. 263. t. \ 6.f. 2 ? omitting the 

 reference to Linn. Fl, Lapp, which is S. tenuifolia. 



In the Highlands of Scotland. Mr. Dickson. 



Shrub. April. 



Stem erect, slender, about a foot high, naked below, like a little 

 tree ; the branches spreading, round, light brown ; downy when 

 young ; in their earliest state rather silky. Leaves on short, 

 but s\er\der,foolstalks, moderately spreading, about an inch and 

 half long, lanceolate, flat, narrow, acute, contracted at each end, 

 very minutely and distantly toothed, so as to appear entire un- 

 less carefully examined ; the principal lateral veins parallel, though 

 their ultimate ramifications form right angles ; the upper surface 

 smooth, of a light, but rather dull, green ; under more or less 

 glaucous, partly silky with close hairs ; the youngest frequently 

 silky, or silvery, all over. Stipulas none, except on young radi- 

 cal shoots, when the whole shrub is cut down, on which the leaves 

 become not longer, but broader, somewhat elliptical, with mi- 

 nute, ovate, close stipulas. Catkins numerously ranged along 

 the leafless branches, on short stalks, with a few lanceolate, 

 tapering, haivy floral- leaves to each, which are as long, or longer, 

 than the little upright ovate hoary catkin, whose scales are black- 

 ish, or purplish, obovate, notched, densely bearded, each ac- 

 companied by a small pale nectary. Germen ovate-lanceolate, 

 silky, stalked. Sttjle very short, with large, broad, obtuse, 

 tawny stigmas. 



The plant here described is the authentic type of S. Arbuscula, with 

 which Linnseus associated, in his Species Plantarum, two other 

 very distinct species, our tenuifolia, and the foliolosa, Fl. Lapp. 

 ed'2. n. 356, He never saw the catkins of S. Arbuscula, which by 



