352 APPENDIX 



with 2 glands. Twigs fragile at the articula- 

 tions. Shrub or tree. Leaves of the catkin- 

 peduncle almost entire. Catkin usually at 

 least 25 x 8 mm. (2060 x 610 mm.). One 

 anterior and one posterior gland. Scales 

 concolor. 



Salix fragilis, p. 209. 



ft Leaves broad and shining ; petiole glandular. 

 Twigs not fragile. Shrub or tree. Catkin- 

 scales entire; leaves of the peduncle distinct, 

 and finely toothed. Catkin usually at least 

 25 x 8 mm. (2065 x 712 mm.) ; glands 2, 

 one anterior and one posterior. Scales con- 

 color. 



Salix pentandra, p. 211. 



(b) Scales discolor, the proximal moiety pale, the 

 distal purple-brown to black; persistent. 



(i) Style long; ovary sessile or sub-sessile. 

 Gland 1. 



(a) Ovary glabrous. Catkin 25 50 x 8 12 

 mm. Branches pruinose. Ovary sub- 

 sessile, with the style nearly as long; 

 stigmas thick and hardly divergent. Scales 

 discolor. One posterior gland. 



Salix daphnoides, p. 215. 



(/3) Ovary hairy. 



* Leaves very narrow. Catkins 20 30 x 

 8 14 mm. Osier shrubs. Catkins ap- 

 pearing before the leaves. Style as long 

 as the fat-ovoid, villous, short-stalked 

 ovary. Stigmas slender, bifid and spread- 

 ing. Scales discolor. One posterior gland. 



Salix viminalis, p. 218. 



