ADDENDA 261 



Salix Lapponum L. (? S. helvetica Viil.). 



A low-spreading, much-branched shrub, attaining 3-4 feet in rich 

 valleys. Leaves oblong or lanceolate, pointed, entire, covered on 

 both sides with a white cottony down, but when old nearly glabrous 

 above. Catkins nearly sessile, with a few bracts at their base, about 

 an inch long in flower, with long silky hairs, lengthening to i| or 2 

 inches when in fruit. 



Mountain pastures extending to wet, bushy places. June, July. 



Distribution. — Dauphiny, Savoy, Switzerland, N. Italy, Tyrol, 

 Central Pyrenees, Central, Northern, and Arctic Europe. Scotland. 



S. Lapponum grows in the Highlands of Scotland, but perhaps the 

 plant of Linnseus is not actually identical with S. helvetica of Villari, 

 though generally considered so. 



Various other species of Willow can be found in the lower 

 mountains of Switzerland. Want of space prevents further treat- 

 ment of the genus. 



ADDENDA 



Sorbus Mougeotii Soyer et Godron (S. scandica Fries.). 



The leaves of the plant figured (4) on Plate XVIII resemble 

 those of this species in being deeply lobed towards the middle; 

 but the large berries are those of S. Aria in being sub-globular 

 rather than oval. The leaves are not so white beneath as in Aria. 

 Godet says {Flore du Jura, 1853) this species is much more like 

 S. hybrida; and remarks that it is commoner on the Jura than 

 Aria, and reaches the Alpine region. 



Distribution.— Monntain woods in the Jura, Savoy, Aosta Valley, 

 Pyrenees, Vosges, Scandinavia, Arran. 



Sorbus Ancuparia L. Mountain Ash. 



This well-known tree has pinnate leaves with 6-8 pairs of serrated 

 leaflets ; dense-flowered compound cymes and small creamy-white 

 flowers. Berries globose, scarlet with yellow flesh. If reaches 

 5000 feet in the Alps. 



Distribution. — 'EvLVQ^e., N. and W. Asia, Japan, N. America. 



