PURPLE WILLOW 251 



vide Buchanan White, p. 350. The twigs are somewhat 

 angular above, smooth and polished, olive to purplish 

 brown i.e. green touched with red and brown. Buds 

 elongated, with parallel edges, narrow and flattened at 

 the apex which may be slightly re-curved. Lateral twigs 

 poorly developed. In its typical form the Almond Willow 

 when bruised has a faint odour of almonds. 



AA Twigs not 'particularly apt to 

 snap at the articulations. 



(^ Buds sub-opposite, long, nar- 

 roiv, shining and appressed, 

 but not flattened ; scale easily 

 detached. 



S. purpurea, L. Purple Willow (Fig. 132). Sending 

 up long, erect and very slender withes, glabrous and shiny, 

 rather pale in colour at first, but passing from greenish or 

 reddish olive (olive-green to red-brown) to deep claret- 

 purple or yellowish grey-green. Buds pale red-violet or 

 shining red to purple-black, small and long, narrow, flat 

 and appressed, sub-cylindric and crowded, a large propor- 

 tion sub-opposite ; those on the upper parts of the twig 

 smaller than those lower down, averaging 4x1. Bud- 

 scale greenish brown to purple-red or black, easily detached 

 and exposing the silky contents. Pulvinus prominent. 

 Lateral shoots thin and poorly developed. There is often 

 a pair of buds at the end of the shoot with the dead apex 

 between. Lenticels few and small. 



f^(^ Buds not sub-opposite ; scale 

 not 1'emarkably detachable. 



Z Buds and shoots, and often 

 twigs as well, distinctly hairy. 



> Buds pubescent-silky, not 

 tomentose. 



