APPENDIX 357 



Branches cracking at the articulations. 

 Catkins shortly stalked, many -flowered, 

 20 45x7 12 mm., serially on the long 

 shoots. Scales concolor. 



Salix fragilis, p. 209. 



** Stamens glabrous ; catkins small, 4 8 x 

 4 6 mm., sub-terminal, hardly leafy ; 

 leaves small and broad- ovate. Dwarf 

 plant. Catkins few-flowered in 1 2 3 

 on short lateral shoots. Two equal glands 

 in each $ flower. Scale ciliate, but nearly 

 glabrous, concolor. 



Salix herbacea, p. 206. 



(/3) Only one gland in each </ flower. 



* Catkins small, rarely above 5 15 mm. 

 long. (See also Salix aurita, p. 221, and 

 Salix niyricans, p. 219.) Plants dwarf 

 or prostrate, creeping, Ac. Mostly rare 

 northern forms. See also Salix lanata, 

 and Salix Lapponum, p. 208. 

 t Scales concolor, velvety ; peduncle long, 

 villous, and sub-terminal. Leaves small. 

 Stamens hairy at the base. Catkins few- 

 flowered, 1012 x 56 mm. In 123 on 

 short lateral shoots. Dwarf scales. Concolor. 

 Venation netted. 



Salix reticulata, p. 206. 



ft Scales discolor and hairy ; peduncle short or 



at least not very long, leafy, lateral ; venation 



not prominently reticulate. 



Catkins fairly large, appearing with the 



leaves and on distinct leafy peduncles; 



several one over the other on the long shoots. 



Stamens smooth, free. Anthers violet before 



anthesis ; gland long and narrow, one, pos- 



