69. Salicaceae 155 



[S. glaucophylla sensu autli.j 



,5". glaucophylloides Fern. 



11. Flowering catkins on short leafy peduncles 1-2 cm long; 

 style 0.7-1.5 mm long; capsules 5-8 mm long, the 

 pedicels less than 1 mm long; leaves ovate to oval, 

 acute or abruptly acuminate, silky-pubescent, not 

 glaucous; sandy shores, n.e. 111. [S. syrticola Fern.; 

 S. adeno phylla Hook.] S. cordata Michx. 



10. Style 0.1-0.2 mm long, the stigxnas therefore sessile or nearly 

 so; scales glabrous on the back, pilose within; twigs gla- 

 brous; leaves oblanceolate or elliptical, entire, glaucous 

 beneath; catkins appearing with the leaves; bogs and 

 wet meadows; Clook, Henry, Lake, McHeniy, Peoria, 

 and Woodford counties. Apr. -May S. pedicellaris Pursh 



9. Ovaries and capsules pubescent. 



13. Catkins with some small leafy bracts at base, in flower as 



the leaf-buds are opening. 



14. Scales yellowish or pink-tipped, thinly villous, shorter 



than the pedicel; capsules 6-10 mm long; stigmas 



nearly sessile; leaves elliptical, entire, or nearly so, 



tomentose beneath; wet ground in n. 111. May. Bebb 



Willow {S. rostrata sensu auth., non Thuill.] 



S. bcbhiana Sarg. 



14. Scales dark brown or black. 



15. Style 1-1.5 mm long; capsules white-tomentose, 6-8 

 mm long at maturity; leaves thick, elliptical- 

 lanceolate, the revolute margins entire or repand; 



bogs in the n. half of 111. May. Sage Willow 



S. Candida Fluegge 



15. Style less than 0.5 mm long; ovaries and capsules 

 appressed-pubescent. 

 16. Leaves serrulate to serrate. 



17. Capsules acuminate, 6-8 mm long, the pedicel 

 2.5-5 mm long; catkins 10-15 mm long; 

 leaves linear-oblanceolate, glandular-ser- 

 rulate; wet ground in the n. third of the 



state. Apr.-May S. petiolaris Sm. 



17. Capsules obtuse, 3-5 mm long, the pedicels 1- 

 1.5 mm long; catkins 18-30 mm long; 

 leaves lanceolate, acuminate, finely serrate; 



wet ground, local. Apr. Silky Willow 



S. scricca Marsh. 



16. Leaves entire or nearly so, narrowly oblanceolate; 

 capsules 5-6 mm long; Kankakee, Kankakee 

 Co., Hill in 1874; Chicago, Cook Co., Hill in 



1894 S. suhsericca (Anders.) Schneid. 



13. Catkins sessile or nearly so, appearing before the leaves; 

 young twigs glabrous or puberulent. 



