Salix. SALIC ACE^E. 89 



so, 2 or 3 inches long by 3 or 4 lines wide, at first downy above especially along the 

 whitish midrib, at length glabrate and dull green, beneath glaucous, pubescent and 

 prominently rugose-veined ; the margin undulate-entire or remotely and unevenly 

 glandular-dentate ; stipules small, lanceolate, acute : fertile anient sessile, with two 

 or three small bracts at base, elongated, slenderly cylindrical, densely flowered, with 

 thickish pubescent rhachis ; scales spatulate, pale, scantily villous : capsules short- 

 conical from a gibbous base, acute, tomentose, sessile, 2 lines long : styles elongated, 

 slender ; stigmas spreading, bitid : nectary linear or filiform, nearly as long as the 

 scale. 



On San Carlos Mountain in a dry ravine, at 3,500 feet altitude, W. H. Brewer. An interesting 

 discovery of a genuine American representative of the Viminales, a group widely distributed 

 throughout Europe and Russian Asia (except in the extreme north), in the temperate regions of 

 India, and in Japan. Our plant, the leaves of which resemble those of S. salviccfolia, Link, is 

 abundantly distinguished from all the forms of the Old World. 



H- -M- Alpine shrubs, 4 to 6 feet high, with short and stout branches, or dwarf 

 and procumbent or creeping. 



15. S. glauca, Linn. Leaves elliptic-lanceolate, usually silky-villo\is both sides, 

 obscurely glaucous beneath, entire : aments leafy-peduncled, cylindrical, rather 

 thick, somewhat densely flowered : scales subacute or obtuse, tawny at base and 

 darker above, villous with long white hairs : capsules ovate-lanceolate, rather obtuse, 

 densely white-tomentose, scarcely or shortly pedicelled : pedicel equalling the nec- 

 tary : style produced, usually bifid ; stigmas laciniate, divaricate. Anders, in DC. 

 Prodr. xvi 2 . 280. 



Var. villosa, Anders. A diffuse shrub, 3 to 7 feet high, with short and stout 

 branches : leaves oblanceolate, acute or short acuminate, attenuate at base, 2 to 4 

 inches long, varying from soft villous to scarcely pilose when young, at length gla- 

 brate and rigid, more or less glaucous beneath ; stipules linear-lanceolate (" semicor- 

 date," Hook.), rather persistent : aments short-peduncled, the fertile when mature 

 sometimes very large, 2 or 3 inches long, f inch thick ; scales oblong-obovate, rather 

 acute, brownish : capsules lanceolate-acuminate, tomentose, at length subglabrate, 

 shortly pedicelled : style short or scarcely produced ; stigmas bifid or entire. Sal. 

 Bor.-Am. 22. S. villosa, (Don?) Hook. Fl. Bor.-Am. ii. 144. S. glaucops, Anders, 

 in DC. Prodr. xvi 2 . 281. 



The genuine S. glauca has not been found, and probably does not occur, within our boundaries. 

 The variety villosa, collected in the Sierra Nevada at from 9,000 to 12,000 feet altitude (Brewer, 

 Bolandcr, Rothrock), ranges northward in the mountains to British Columbia and to the Saskatch- 

 ewan. This comprehends a number of forms differing from S. glauca mainly in their less tomen- 

 tose and more pointed capsules, entire styles, and less deeply cut stigmas : subsequently interposed 

 by Andersson as a quasi-species between S. glauca and S. desertorum. 



1 6. S. Californica, Bebb. Usually 4 to 6 feet high : leaves lanceolate to ob- 

 ovate, acute, 1 to 3 inches long by 4 to 7 lines wide, abruptly contracted or even 

 rounded at base, glandular serrulate, villous-tomentose when young, at length gla- 

 brate and green both sides ; stipules lanceolate, acute, serrulate : aments cylin- 

 drical, densely flowered, appearing with the leaves, when in flower about an inch 

 long, the fertile when in fruit lengthening to 2 inches or more ; the leaf-like bracts 

 at base closely studded on the margin with minute glands : scales lanceolate, acute, 

 dark, villous with long silky hairs : capsule ovate-conical, rather obtuse, grayish- 

 tomentose, 2 or 3 lines long : pedicel short but distinct, about the length of the 

 nectary : style elongated, entire ; stigmas mostly entire, erect. 



This occurs in the Sierra Nevada at lower altitudes (8,000 to 9,000 feet) than the preceding, 

 from Mariposa County northward (Brewer, Bolandcr, Lcmmon, Greene, Mrs. Austin). Easily dis- 

 tinguished from genuine S. glauca by the glandular-serrulate leaves, elongated entire styles, and 

 shorter erect mostly entire stigmas ; but some of the forms are not so clearly separable from the 

 variety villosa. It is an evident transition toward S. adcnophylla (shores of the Great Lakes, 

 Labrador, etc.), the staminate aments, with glandular-margined bracts at base, being very much 



