72 THE BRITISH WILLOWS 



ovoid pointed, glabrous or soon glabrescent. Stipules or small, 

 ovate on strong branches. Leaf-blades f-lf in. long, broadly or 

 narrowly ovate or oval-oblong, more rarely subrotund or narrowly 

 ovate-lanceolate, acute obtuse or even rounded at the tip, usually 

 finely serrate, sometimes subcrenate, shining green and usually 

 glabrous above, glaucous and somewhat pubescent beneath. Cat- 

 kins about 1 in. long, slender, pale, coeval with or before the 

 leaves, on leafy peduncles, fl. May-June; bracts spathulate or 

 oblong-obovate, clasping the base of the ovaries, pubescent, pale 

 at first becoming brown at the tip : $ with glabrous filaments, 

 anthers red or reddish at first ; $ elongate (to If in.) ; ovaries 

 \-\ in. long, ovate-conic to ovate-lanceolate tomentose, mostly 

 subsessile but lower ones pedicelled ; pedicels usually much shorter 

 than the linear or Ungulate nectaries ; styles varying from very 

 short to moderately long, sometimes + bifid, stigmas small. 



A very variable plant, especially in its leaves, on variations in 

 which Smith (whose S. arbuscula was a S. repens rosmarinifolia 

 form) founded four species, which were long ago reduced to mere 

 varieties ; viz. S. carinata, a larger more erect form, with ovate 

 leaf-blades folded into a keel and recurved, inconspicuously veined, 

 glaucous-green beneath ; S. prunifolia, with leaf-blades ovate, 

 glabrous, flat, glaucous beneath, reticulate above with raised veins 

 when dry ; S. vacciniifolia, with leaf-blades ovate-lanceolate, 

 glaucous and silky beneath, stem decumbent ; and S. venulosa, 

 with leaf-blades ovate, glabrous, reticulate above with prominent 

 veins, rather glaucous beneath. There are, however, no very 

 definite characters in the leaves, and none in the catkins, to 

 separate these forms. 



S. arbuscula, a willow of rocky ledges on Scotch mountains, is 

 found at 1500 ft. and upwards in Argyllshire, abundantly in the 

 Breadalbane range, Perthshire, from 2000-2700 ft., and was 

 formerly found in the Clova Mountains, Forfarshire. It has been 

 reported also from Dumfries-shire, S. Aberdeen, and the Orkneys, 

 but without satisfactory evidence. Europe : Mountain ranges of 

 Central Europe, Scandinavia ; Siberia. 



S. arbuscula x Andersoniana (p. 64). 



X Andersoniana x phylicifolia (p. 64). 



X herbacea (p. 72). 



x lapponum (p. 73). 



X myrsinites (p. 73). 



X phylicifolia (p. 74). 



SALIX ARBUSCULA X HERBACEA. 



Syn. S. simulatrix B. White, Eevision, 439. — S. arbuscula x 

 herbacea Enander, Sal. Scand. exs. fasc. i. No. 23 (letterpress). 



Icon. Enander (I. c). 



Exs. Hb. B. White (Coire Dubh Galair ; Meall Dhuin Croisg, 

 ? only, not $ cult.). E. F. & W. E. Linton, Nos. 67, 96. Hb. 

 E. S. Marshall, Nos. 48, 69. Enander, No. 24. 



A dwarf creeping shrub, stems mostly buried in moss, branches 

 slender, ascending, slightly pubescent at first or glabrous. No 

 stipules seen. Leaf-blades \-\ in. long, obovate or broadly oval, 



