SALICACE^E. (WILLOW FAMILY.) 485 



coides, Dart., Fl. Cestr., 3 ed.), is a hybrid between this species and S. sericea, 

 having the leaves, even those of the most vigorous shoots, tapering and rather 

 acute at base, glaucous or glaucescent beneath and sparsely appressed-hairy ; 

 stipules small, ovate, pointed ; capsules more or less silky when young, be- 

 coming glabrate, shortly pedicelled ; twigs brittle at base. A hybrid with the 

 European S. incana (surprising on account of the rarity of the cultivated 

 parent) is found at Ithaca, N. Y. (Dudley). 



15. S. glaueoph^lla, Bebb. Leaves varying from ovate with a broadly 

 rounded base to oblong-lanceolate and equally pointed at both ends (3-4' long, 

 nearly ^ wide), glandular-serrate, subcoriaceous, glabrous throughout, dark green 

 and shining above, glaucous beneath, the young drying black ; stipules large, ear- 

 shaped, dentate ; aments thick, oblong-cylindrical, in size and silkiness resem- 

 bling n. 6 ; capsules attenuate-rostrate, 3-5' long, greenish, drying brown. 

 Var. ANGUSTIF6LIA, Bebb ; leaves narrower (3' long, ' wide), pointed at both 

 ends. (S. angustata, of ed. 2, in part.) Var. BREVIF6LIA, Bebb; leaves 

 obovate, about 1' long, strongly veined. Common^ on the sand dunes of 

 Lake Michigan, and occasionally found away from the lake-shore in N. 111. 

 and Wise. 



16. S. balsamifera, Barratt. Leaves broadly rounded and usually sub- 

 cordate at base, at Jirst very thin, subpellucid and of a rich reddish color, at 

 length rigid, dark green above, paler or glaucous and prominently reticulate-veined 

 beneath, slightly glandular-serrulate ; petioles long and slender ; stipules obso- 

 lete ; fertile aments becoming very lax in fruit, the long slender pedicels 6-8 

 times the length of the gland ; style short. (S. pyrifolia, Anders.) In open 

 swamps along our northern boundary, Maine to Minn., and northward ; White 

 Mountains of N. H. (Little, 1823; rediscovered by Pringle, and C. E. and E. 

 Faxon). A much branched shrub, growing in clumps recent twigs shining- 

 chestnut on the sunny side. 



** *+ Leaves clothed, even when fully grown, with a long silky tomentum on both 

 sides, which is finally deciduous ; capsule subsessile ; style elongated, 



17. S. adenoph^lla, Hook. Leaves ovate or very broadly lanceolate, 

 cuspidate-acuminate (1-2' long), dull green both sides, very closely serrate 

 with fine projecting gland-tipped teeth; stipules conspicuous, ovate-cordate, 

 glandular-serrate, exceeding the short stout petioles, which are dilated at base 

 and embrace the obtuse silky buds ; aments leafy-peduncled, the fertile not 

 rarely becoming 4' long, densely flowered. Shores of the Great Lakes, root- 

 ing extensively in the sand-dunes. A large straggling shrub, with stout to 

 mentose twigs and crowded leaves. Hybridizes with S. cordata. 



*~ i- Low erect shrub, 1 - 3 high ; leaves small, entire ; capsules oblong-cylindric ; 

 stigmas sessile or nearly so. 



18. S. myrtilloides, L. Leaves elliptic-obovate, about 1' long, obtuse 

 or somewhat pointed, entire, smooth on both sides, somewhat coriaceous when 

 mature, revolute, reticulated, pale or glaucous beneath ; fertile aments oblong, 

 loosely few-flowered, borne on long leafy peduncles ; capsules reddish green ; 

 pedicels slender, twice the length of the nearly smooth greenish yellow scale. 

 Var. PEDICELLA.RIS, Anders.; leaves oblong-linear or oblanceolate, 1-2-J' 

 long. Cold peat-bogs, N. Eng. and N. J. to Iowa, and northward. (Eu.) 



