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 Perm, and 111. This 

 has been confused with S. discolor, as intermediate forms apparently occur. 



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

 N. Y. 



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. n. sp. 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. n. sp. LONG-BEAKED WILLOW. A shrub, 1-4 m. 

 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, 1-1.5 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 11.5 cm * long, the pistillate in fruit 23 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, palp, 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, i- 

 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 the 

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

 conic. In dry soil, N. S. to western Ont., south to N. Car., Tenn. and Neb. Hy- 

 bridizes with S. discolor. April-May. 



