46 SALICACEAE 



SALIX ADENOPHYLLA Hooker 

 Gland-Leaved Willow Dune Willow 



The Gland-Leaved Willow, fig. 5, is low and spreading, often 

 straggling, 3 to 5}/i or rarely 6 feet high, with short, stoutish 

 branches, which bear crowded, short-stalked, ovate, thick and 

 leathery, deep green leaves above conspicuous, subcordate stip- 

 ules. Leaf blades, which vary from ovate to ovate-lanceolate, 

 are at first silvery with long, silky tomentum but eventually be- 

 come glabrous on both surfaces. They range from ll/^ to 3 

 inches long by ^ to 1^ inches wide. Their bases are generally 

 cordate, though sometimes only broadly rounded, and the apices 

 are acute or abruptly acuminate. Their margins are closely, 

 finely and regularly serrate, and the teeth are gland tipped. The 

 petioles are short, being V^ to ]4 inch long and, like the leaves, 

 hairy at first but eventually nearly or quite glabrous. The 

 semicordate to nearly ovate stipules, ]/i to y^ inch long, also 

 are silky at first but become glabrous, and their margins are 

 serrate with gland-tipped teeth. Twigs when young are silvery 

 with silky hairs and remain more or less puberulent through 2 or 

 more seasons. The bark, at first light reddish brown, becomes 

 dark red to brown and bears numerous orange lenticels which 

 appear in the second season. The conical buds, ]4- to }i inch 

 long, are orange red, glabrous on the upper half, silky pubes- 

 cent below, and stand closely appressed to the twigs. 



Catkins appear with or before the leaves, both kinds stand- 

 ing erect on divergent, pubescent peduncles ^ to ll/^ inches 

 long, and they often are subtended by 3 to 5 small leaves up to 

 ^ inch long. Scales of the catkins are generally villous, ob- 

 long, and pale brown. Both kinds of catkins are at first ^ to 

 11/4 inches long, but the pistillate catkins lengthen in maturity 

 to 2i/^ to 3 inches and continue to be pubescent on the rachis. 

 Staminate flowers contain 2 stamens, the filaments of which are 

 glabrous ; and pistillate flowers bear 2 entire or slightly divided 

 stigmas at the top of the short styles. The glabrous capsules in 

 maturity are reddish, conic and without distinct beaks. They 

 stand ^ to ^ inch high on glabrous pedicels nearly twice as 

 long as the floral glands. 



Distribution. — The Gland-Leaved Willow is a shrub of 

 northern sandy regions. It ranges from Labrador to James Bay 

 and south to the Great Lakes region, reaching its most south- 



