354 APPENDIX 



(ii) Style short; ovary hairy or at least gla- 

 brescent. Gland 1. 



(a) Ovary sessile; leaves sub-opposite. Catkins 

 1 5 45 x 6 8 mm. Ovary f at-ovoid, blunt, 

 hairy; with sessile .small and broad stigma. 

 One short broad posterior gland. Scales 

 discolor. 



Salix purpurea, p. 216. 



() Ovary pedicellate ; leaves alternate. 



* Dwarf creeping plant with silky leaves 

 and small catkins 5 12 x 5 8 mm., 

 usually at most 2:1. Pedicel of ovary 

 at least 3 4 times as long as the gland, 

 and, like the ovary, villous. Style obsolete; 

 stigmas divaricate and minute. One 

 posterior gland. Scales discolor. 



Salix repens, p. 207. 



** Plants not creeping or dwarf. 



t Leaves black on drying, glabrous or slightly 

 pubescent; catkins 10 25x6 12. Catkins 

 with or before the foliage, thick and short. 

 Branches more or less shortly hairy. Catkins 

 serially on the long shoots. Leaves only 

 loosely hairy, or glabrous. Pedicel of the 

 ovary about twice as long as the one short 

 posterior gland, and like the ovary, glabrous 

 or hardly hairy. Scales discolor. Style short, 

 about as long as the stigma. 



Salix nigricans, p. 219. 



tt Leaves brown on drying. 



Leaves glaucous or bluish beneath, not rugose, 

 with prominent venation. Catkins 15 35 x 



