SALIC ACE^E 131 



ovary covered with white tomentum ; alpine pastures. 6". 

 phylicifolia, L. (including Weigeliana, Willd.) ; similar, 

 but catkins thick, dense, sessile ; Tirol. 5. Myrsinites, 

 L. (including ovata, Ser., and Jacquiniana, Willd.) ; stem 

 prostrate, leaves green and shining on both sides, catkins 

 on long stalks, ovary at first woolly; alpine pastures, 

 frequent. 5. daphnoides, Vill. ; catkins appearing before 

 the leaves, branches glaucous-blue ; sub-alpine. .S. Lap- 

 ponum, L. (helvetica, Vill.) ; leaves elliptic-lanceolate, 

 densely white-tomentose beneath, stipules half-cordate, 

 catkins sessile ; high, moist, frequent. ^S. glauca, L. ; 

 leaves narrowly lanceolate, silky on both sides, after- 

 wards glabrous, stipules ovate, acute, catkins on long 

 stalks ; alpine pastures ; Switzerland, Tirol. 



C. Catkins terminal, at the apex of shoots of the same 

 year; low shrubs: S. reticulata, L. (PL 106); leaves 

 large, elliptic, entire, with prominent nerves and white 

 tomentum beneath, catkins silky, on long stalks; high, 

 frequent. .S. vestita, Pursh. ; resembling the last, but 

 leaves more woolly, catkins on short stalks, tomentose; 

 Salzburg, rare. .S. herbacea, L. ; stem prostrate, leaves 

 very small, nearly orbicular, crenate-serrate ; very high ; 

 Switzerland, Dauphiny, Pyrenees. >S. retusa, L. (including 

 Kitaibeliana, Willd.) ; leaves obovate, entire, truncate, 

 with parallel nerves; high, frequent. vS. serpyllifolia^ 

 Koch ; leaves smaller, acuminate, catkins very few- 

 flowered, stems interwoven ; high, frequent. 



The lowland Swiss species may be arranged under the 

 following groups : ^. triandra, L. ; stamens 3. 5. pen- 

 tandra, L. ; stamens usually 5. 6". fragilis } L., Withy; 

 leaves lanceolate-acuminate, stipules half-cordate, deci- 

 duous. 5. alba, L., White Willow ; leaves narrowly Ian- 



