414. SALICACEJE. (WILLOW FAMILY.) 





apper side becoming nearly smooth at maturity ; stipules minute, hairy, very cttrkf 

 deciduous ; calkins globular when young, loosely -flowered ; ovary with a long tapering 

 beak, clothed with silvery hairs; style short; stigmas 2-fal>ed. New England to 

 Wisconsin, and southward. Shrub l-l high, much branched: leaves 

 thick, l' long. Stipules seldom seen, often reduced to a mere gland. A vari- 

 ety occurs with very small and rigid contorted leaves. 



3. S. llUlIliliS, Marshall. (Low BUSH WILLOW.) Lea ves petioled, lan- 

 ceolate or obovate-lanceolate, acute or obtuse with an abrupt point, slightly 

 downy above, more thickly so, or sometimes grayish-woolly, beneath ; stipule* 

 small, semi-ovate and entire, or larger and lunar with 2-4 teeth, shorter than the peti- 

 oles ; catkins often recurved; ovary hairy; style distinct; stigmas 2-cleft. (S. 

 Muhlenbergiana, Bairatt. S. conifera, Mold.) Borders of fields and road- 

 sides ; common. Shrub 3 - 8 high, varying much in size and appearance. 

 The small forms are at times scarcely distinguishable from No. 2, but the leaves 

 arc longer, less firm in texture, and generally stipulate ; the larger forms, with 

 leaves 3' -5' long and f- 1' broad, resemble those of the two next species, but 

 retain more or less down on the under surface at maturity. The species of this 

 and the following section often bear cone-like excrescences on the ends of the 

 branches, formed of closely imbricated leaves, probably occasioned by the punc- 

 ture of insects. 



- - Catkins cylindrical, large, clothed with long glossy hairs : leaves more or less 

 ferrate, smooth and shining above, glaucous beneath and at length smooth. Shrubs 

 or small trees. 



4. S. discolor, Muhl. (GLAUCOUS WILLOW.) Loaves lanceolate or 

 ovate-lanceolate, acute, irregularly toothed on the sides, entire at the hftee and 

 apex ; stipules scmilunar, toothed ; catkins erect ; scales very hairy, ofi/am.totate, 

 tomeu-hat acute; ovary densely silky, (S. sensitiva, Barratt?) Low meadows 

 and river-banks; common. A large shrub or small tree, 8 -15 high. The 

 young leaves are commonly obtuse and pubescent, at length becoming snrooth 

 and whitish-glaucous beneath. Stipules in the vigorous shoots equalling the 

 petiole, more often small and inconspicuous. Young catkins l' long, glossy, 

 blackish with the conspicuous scales, elongating in fruit to 2^'. 



5. S. erioccplialil, Michx. (SILKY-HEADED WILLOW.) Leaves ob- 

 long-oval, acute, rounded or tapering at base, sparingly and irregularly toothed ; 

 stipules semilunar, toothed ; catkins densely flowered, thickly r<' t rtd with long shin- 

 ing hairs ; scales of the sterile ones round-obovate, ol>tuse ; ovary conspicuously stalked, 

 downy. (S. prinoides, Pursh ? S. crnssa, Barratt.) Low meadows and swamps. 

 Closely resembles the last; but the aments are more compact and silky, and 

 the scales rounder. 



# # Ovary stalked, silky-gray, shining : calkins ovoid or "jKndrical, with a few small 

 leaf-like brads at the base: leaves flncly and evenly serrate, silky-gray or gl< tut-on* 

 beneath, dr//ing black : stipules varying from linear to semilunar, toothed, very decid- 

 uous. Shrubt. 



6. S. scrccva, Marshall. (SILKY-LEAVED WILLOW.) Lcarrs lanceolate, 

 pointed, downy above, grayish underneath irifh short silky hairs; sterile catkins 

 small; (lie fertile narrowly cylindrical, closely flowered ; scales obtuse, round-obo- 



