SALICACEAE. 317 



25. Salix eriocephala Michx. Pussy Willow. A shrub or low tree, much 

 resembling the preceding. Mature leaves rather firm, green and shining above, 

 glaucous and generally hairy beneath, especially on the veins, quite often fer- 

 ruginous, 6-10 cm. long, 2-4 cm. wide ; stipules semicordate, often deciduous; 

 aments unfolding before the leaves, dense and short, the staminate 1-2 cm. long, 

 yellowish silky-hairy, the pistillate ones 3-4 cm. in fruit ; capsule as in the pre- 

 ceding, often 10 mm. long. In wet places from N. Eng. to Penn. and 111. This 

 has been confused with J>'. discolor, as intermediate forms apparently occur. 



Salix eriocephala amplif61ia Rydb. Leaves broadly oval, 4-5 cm. wide. Conn, and 

 N. V. 



26. Salix prinoides Pursh. Chestnut-oak Willow. Shrub resembling 

 the preceding, but branches slender, glabrous ; mature leaves lighter colored above 

 and less glaucous beneath, narrower and more tapering at both ends, serrate; aments 

 longer, 4 cm. long or more, rather lax, sparingly silky; capsule conic, finely silky, 

 with a more evident style. N. Y. to Va. 



27. Salix latiuscula Anders. Newfoundland Willow. (I. F. f. 1202.) 

 A low shrub, with dark brown glabrous twigs, the young shoots pubescent. Leaves 

 oval or obovate, subcordate at the base, short-pointed at the apex, serrulate, when 

 mature bright green above, pale beneath, about 4 cm. long, 2.5 cm. wide; stipules 

 ovate-cordate, acute ; aments unfolding with the leaves, borne at the ends of short 

 branches, dense, spreading or erect, the staminate 2 cm. long, the pistillate 5-8 cm. 

 long in fruit; bracts yellow, obtuse, persistent, slightly villous; capsule ovoid-conic, 

 sparsely tomentose, acute, 6 mm. long; style very short. Summer. Newf. (accord- 

 ing to Andersson). [S. Barkleyi latiuscula Anders.] 



28. Salix squamata Rydb. Long-bracted Willow. A shrub or low 

 tree, resembling closely S. eriocephala, but young branches only slightly pubescent, 

 Mature leaves firm, green and shining above, glaucous and glabrous beneath, 6-10 

 cm. long, distinctly dentate-serrate, acute at both ends; aments on more or less 

 leafy branches, erect, the fertile ones in fruit 3-7 cm. long, rather loose; bracts 

 yellowish or reddish, lanceolate, acute, three-fourths as long as the pistil; capsule 

 conic; style short; stigmas short and almost entire. N.J. and Penn. Summer. 

 Type from Sparta Junction, N. J. 



29. Salix perrostrata Rydb. Long-beaked Willow. A shrub, 1-4111. 

 high with grayish, rough and scaly bark; branches yellow or the youngest tinged 

 with red, at first finely pubescent; leaves obovate-lanceolate or oblanceolate, when 

 young finely silky, in age glabrate, 2-4 cm. long, I-I.5 cm. wide, acute at both 

 ends, and with undulate margins, light green above and paler beneath; petioles 2-6 

 mm.; stipules minute, deciduous; aments somewhat leafy-bracted, almost sessile; 

 the staminate 1-1.5 cm. long, the pistillate in fruit 2-3 cm.; capsule conic, long- 

 rostrate; stigma subsessile. Black Hills of S. Dak., Pine Ridge, Neb. and Wyoming. 

 May-June. (S. Bebbiana Rydb. Cont. U. S. Nat. Herb. 3: 523, mainly, not Sarg.) 



30. Salix Bebbiana Sarg. Bebb's Willow. (I. F. f. 1184.) A shrub, 2-6 

 m. tall, or sometimes a tree 8 m. high, the twigs pubescent or puberulent, terete. 

 Leaves elliptic, oblong or oblong-lanceolate, acute, acuminate or some of them 

 blunt at the apex, rounded or narrowed at the base, sparingly serrate or entire, dull 

 green and puberulent above, pale, reticulate-veined and tomentose beneath or nearly 

 glabrous on both sides when very old; petioles 4- 12 mm. long, stipules semi- 

 cordate, acute, deciduous; aments sessile, expanding with or before the leaves, 

 dense, the staminate 2-3 cm. long, the pistillate 5 cm. long in fruit; capsule very 

 narrowly long-conic, twice as long as the filiform pedicel. In dry soil and along 

 streams, Anticosti to Hudson Bay and Br. Col., south to N. J., Penn., Neb. and 

 Utah. April-May. 



31. Salix humilis Marsh. Prairie Willow. (I. F. f. 1185.) A shrub, 1- 

 2.5 m. long, the twigs tomentose or pubescent, terete. Leaves oblanceolate, petioled, 

 5-10 cm; long, 8-16 mm. wide, acute at both ends or the lower broader and obtuse 

 at the apex, sparingly denticulate, the margins slightly revolute, the upper surface 

 dark green, dull, puberulent or glabrous; petioles 4-6 mm. long; stipules obliquely 

 lanceolate or ovate, acute, commonly persistent; aments unfolding much before t he- 

 leaves, sessile, ovoid-oblong, short, dense; stigmas nearly sessile; capsule narrowly 

 conic. In dry soil, X. S. to western Out., ^-outh to X. Car., Tenn. and Neb. J ly- 

 bridizes with S. dismlnr. April-May. 



