3054 



SALIX 



SALIX 



and shorter than the pedicels : caps, long-rostrate. E. N. 

 Amer. Prefers dry soil and can be used to good advan- 

 tage against walls and in rockeries. 



20. hfcmilis, Marsh. PRAIRIE WILLOW. A shrub, 

 3-8 ft. high, varying much in stature, and in size and 

 shape of Ivs. : branches hairy: Ivs. oblanceolate to 

 oblong, nearly entire, more or less 



revolute: aments densely and many- 

 fld. E. N. Amer. Grows in driest 

 situations. 



21. tristis, Ait. DWARF WILLOW. 

 Fig. 3527. A diffuse shrub, 1-1 ^ ft., 

 with long deep-set root: branches gray, 

 slender: Ivs. small, 1 in. long, linear- X; 

 lanceolate, very short-petioled: aments 

 small and rather few-fld.; stamens 

 orange-red. E. N. Amer. 



22. sericea, Marsh. SILKY WILLOW. 

 A shrub usually 4-8 ft. high, diffusely 

 spreading from base: branches often 

 reddish: buds obtuse and rounded at 



apex, cylindrical: Ivs. very silky beneath, sometimes 

 becoming less so at maturity: aments densely fld., 

 appearing with the Ivs.; stamens often orange-red: 

 caps, short-pedicelled, ovate-oblong, nearly truncate at 

 apex. N. E. N. Amer. 



23. petiolaris, Smith, not Hort. Fig. 3526. A low 

 shrub, 3-5 ft. high: branches slender, the whole plant 

 much slenderer than S. sericea, with which it frequently 

 grows : buds smaller and more pointed : Ivs. only slightly 

 silky when young, soon glabrous, more evidently toothed : 

 aments rather loosely fld.: caps, rostrate and pointed, 

 distinctly pedicelled. Cent, and N. E. N. Amer. S. 

 petiolaris of the trade is S. incana. 



24. viminalis, Linn. OSIER WILLOW. A shrub or 

 small tree, 10-20 ft. high: branches slender and straight: 

 Ivs. linear-lanceolate, beautifully silvery, 4-10 in. long; 

 margins revolute, entire: aments appearing before the 

 Ivs., golden yellow. Eu., Asia. Most often seen in plan- 

 tations for basket material, for the production of which 

 the plants are cut near the ground every year. Willow- 

 culture in experienced hands is often profitable. (For 



details, see Simpson, Osier Culture, Bull. 19, Div. of 

 For., U. S. Dept. Agric. 1898.) This species does not 

 thrive in this country as well as in Eu. 



25. Candida, Fluegge. HOARY WILLOW. Fig. 3526. 

 A shrub, 2-5 ft. high: young branches hoary, becoming 

 smooth and red with age: buds reddish, rounded at the 



(Xfc) 



3529. Staminate catkins of goat willow. Salix Caprea (X 1 A)- No. 17. 



apex: Ivs. lanceolate or linear-lanceolate, 2-4 in. long, 

 dark green and wrinkled above, covered below with 

 dense white tomentum, revolute: aments sessile, appear- 

 ing before the Ivs.; staminate of reddish anthers: caps, 

 densely white-woolly, with red style and stigmas. N. 

 Amer. This species hybridizes freely with S. cordata, 

 and several natural hybrids have been described. 



26. myrtilloides, Linn. Fig. 3526. A shrub, 2-5 ft. 

 high, with rather slender brown twigs: Ivs. oblong or 

 elliptic-oboyate, usually obtuse at both ends, entire and 

 smooth, reticulate-veined : aments rather few-fld.: caps, 

 reddish, glabrous. N. E. N. Amer. and Eu. Usually 

 grows in cold peat-bogs. Probably not in cult. The 

 plant sold under this name is probably some form of S. 

 purpurea, which S. myrtiUoides closely resembles in 

 general appearance. 



27. cordata, Muhl. (S. rigida, Muhl.). HEART- 

 LEAVED WILLOW. Fig. 3530. A large shrub or small 

 tree, 10-30 ft. high: branches stout: buds large, flat- 

 tened against the branch: Ivs. oblong-lanceolate, green 

 on both sides, finely serrate, glabrous and rather rigid 

 at maturity: aments rather slender, appearing with the 

 Ivs.: caps, glabrous, greenish or brownish. N. Amer. 

 This is a variable species and undoubtedly some of the 

 forms included in it are hybrids; several supposed 

 natural hybrids have been described. Var. pendula, 

 Hort., is a decumbent form. 



28. irrorata, Anders. COLORADO WILLOW. A dense 

 diffuse shrub, 8-12 ft. high: branches stout, covered 

 with a white bloom: buds large: Ivs. linear-lanceolate, 

 3-4 in. long, J^in. wide, green above, glaucous beneath, 

 undulate serrate: aments all appearing before the Ivs., 

 sessile, very densely fld.; staminate golden yellow: caps, 

 glabrous, nearly sessile. Rocky Mts. 



29. incana, Schrank (S. petiolaris, and S. rosmarini- 

 folia of American gardeners, but not of botanists). 

 Shrub or small round-topped tree, with long, slender 

 branches: Ivs. linear, revolute, 2-5 in. long, very narrow, 

 green above, white-tomentose beneath: aments long 

 and slender, appearing with the Ivs.: caps, glabrous; 

 filaments of stamens more or less connate. Eu. This 

 species is frequently grafted upon hardy stock (S. 

 Caprea) when sold from nurseries. 



30. purpurea, Linn. (S. Forbyana, Smith. Vetrix pur- 

 purea, Rafin.). PURPLE OSIER. Fig. 3526. A shrub or 

 small tree, spreading at base, with long, flexible branches : 

 Ivs. oblanceolate, serrulate, glabrous, veiny, 3-6 in. long, 

 often appearing opposite: aments sessile, slender; pistil- 

 late recurved; scales purple; stamen 1: caps, small, 

 ovate. Eu. Planted as an ornamental shrub and 

 escaped in many places. Also grown as a basket-willow. 

 Var. pendula, Dipp. (S. nlgra pendula, Hort. S. ameri- 

 cdna pendula, Hort.) . Branches pendent. Gng. 4 : 243. 



