APPENDIX 359 



6 8 : 1. Branches tomentose. Leaves ellipti- 

 cal-lanceolate to obovate 5 8 ( 12) x 2 

 4 '5 cm. Grey-tomentose beneath, rugose with 

 prominent venation. 



Salix cinerea, p. 220. 



Catkins not more than 6 20 mm. long, 

 several one over the other on long shoots, 

 sessile, appearing before the foliage. Long, 

 but not more than 6 8 : 1 or so. With a 

 few small basal scale-leaves. Branches very 

 divergent and angular, smooth or glabrescent. 

 Leaves like S. cinerea, but much smaller 

 (2 5 ( 7) x 1 3 cm.), chagreened above, 

 velvety and reticulate beneath. 



Salix aurita, p. 221. 



[The stamens of 8. nigricans are occasionally provided 

 with a few hairs at the base, and those of S. Gaprea are 

 sometimes rather glabrescent.] 



ft Stamens glabrous. 



Catkins distinctly pedunculate, and with a 

 few leaves, rather crowded toiuards the tips 

 of the branches; 20 30x10 mm./ sweet- 

 scented the one, posterior gland long and 

 narrow. Leaves silky -tomentose. Shoots 

 glabrous. Stamens smooth, free. 



Salix Lapponum, p. 208. 



[The very rare arctic species, Salix lanata, also comes 

 here. It has more ovate densely silky-woolly leaves, with 

 a glistening golden shimmer like the catkins. The latter 

 are crowded 2 4 together at the ends of the shoots, 

 sessile, with at most a few basal scales, and appear before 

 the leaves ; they are about 20 50 x 15 cm. Stamens 

 two, smooth, free. One posterior gland only. Scales 

 discolor.] 



