4C4 salicacejE. (willow family.) 



toothed, smooth, paler and with veinlets reticulated beneath ; stipules kidney- 

 shaped or ovate, toothed, often large and conspicuous, of the length of the 

 (when young downy) petiole, or sometimes small and almost entire; catkins 

 appearing with the leaves, leafy at base, cylindrical, the fertile elongating in 

 fruit; ovary lanceolate, tapering to the summit. — Var. eIgida has the leaves 

 large and rigid, with coarser teeth, of which the lowest are somewliat elongated. 

 (S. rigida, Muhl. S. Torreyana, Banatt, which has leaves of « deeper green 

 beneath, appears to belong here.) — Var. mykicoides has narrower leaves, 

 neither heart-shaped nor truncate at the base. (S. myricoides, Muhl.) — Var. 

 ANGUSTA.TA has lanceolate tapering finely serrate leaves, acute at the base, and 

 a more slender style. (S. angustata, PursA, & Ed. 2.) — Low or inundated 

 places : common. — Shrub or small tree, with leaves 2j'-6' long. 

 § 3. Catkins lateral, with a few leafy bracts at tlie base, appearing with the leaves in 

 May or June : ovary stalked, silky-hoary : stamens 2 : scales persistent. 



10. S. livida, Wahl., var. occident^lis. (Livid W.) Leaves oblong 

 or obovate-Ianceolate, acute, obscurely toothed, downy above, prominently veiny, 

 softly hairy and glaucous beneath; stipules semilunar, toothed ; catkins cylindrical, 

 the fertile becoming loose in fruit ; ovary almost linear ; style scarcely any ; 

 pods slender, tapering from near the base, their very slender stalk longer than the nar- 

 row scale. (S. rostrata, Richardson, & Ed. 2. S. vagans, cinerascens, var. occi- 

 dentalis, Anders.) — Moist or dry ground, New England to Penn., Illinois, and 

 northward : common. — Shrub 3° - 15° high. A transformation of the anthers 

 into imperfect ovaries is frequently observable in this species. 



11. S. ehloroph^^lla, Anders. (Green "VV.) G/adrous, except the cat- 

 kins ; leaves oblong-hmcoolate or oblong, mostly entire, obtuse or acutish at 

 both ends (l'-2'long), shining above, pale or glaucous beneath; fertile cat- 

 kins dense, short-cylindrical; ovary ovoid-conical; pod silky, very short-stalked; 

 style slender; scale dark-colored, villous. (S. phylicifolia, Ed. 2, not of Z.) — 

 Moist ravines, on the alpine summits of the White Mountains, New Hampshire 

 (Oakes, Tuckemian), and northward. — A low spreading shrub, with leaves of a 

 coriaceous texture when old. 



§ 4. Catkins peduncled {long and loose), borne on the summit of lateral leafy branches 

 of the season, appearing in May and June : scales greenish-yellow, more or less 

 hairy, falling before the pods are ripe : filaments hairy below. Shrubs and trees, 

 with the branches very brittle at the base. 



* Stamens 3-6 or sometimes more : ovary stalked, glabrous. 



12. S. Itioida, Muhl. (Shining W.) Leaves ovate-oblong or lanceolate 

 and narrow^ usually with a long tapering point, smooth and shining on both sides, 

 serrate; stipules oblong and toothed; stamens commonly 5, rarely 7-10; pods 

 tapering. — Along streams: rather common. — A beautiful species, sometimes 

 flowering at the height of 3°, sometimes becoming a small bushy tree of 12°- 

 15°. Probably the same as S. pentandra, L., of Eu. 



13. S. nigra, Marsh. (Black W.) Leaves narrowly lanceolate, pointed 

 and tapering at each end, sen-ate, smooth (except on the petioles and midrib) 

 and green on both sides ; stipules small, deciduous ; scales short and rounded, 

 M'oolly ; glands large, of the sterile flowers cleft, of the sterile kidney -shaped ; 



