THE BRITISH WILLOWS 67 



in regard to these characters that no further description of the 

 hybrid is attempted. 



Bather frequent in the northern counties of England and 

 throughout Scotland, wherever the two species occur together. 

 In Europe, native in Scandinavia and Finland ; found in Germany 

 and Austria chiefly in botanic gardens, according to 0. von Seemen. 



SALIX ANDERSONIANA X REPENS. 



Syn. S. nigricans -rep ens Heidenreich in Anderss. Monogr. i. 

 131. Wimmer, Sal. Eur. 239. B. White, Revision, 394 ?— S. nigri- 

 cans x repens Seemen, iv. 256. 



Exs. Hb. B. White (Cat. Perthshire Museum, p. 22) ? < 



B. White (I. c.) describes specimens from two localities in 

 Perthshire as this hybrid, and says they " evidently belong to a 

 hybrid between S. repens and S. nigricans. The specimens appear 

 to me to have only a superficial likeness to the hybrid, to want 

 any clear evidence of S. repens, and to be a small-featured form of 

 S. Andersoniana x phylicifolia. 



A plant found by the Lochy Burn, Glen Shee, also in Perth- 

 shire, by the Rev. E. S. Marshall (No. 701, sponte non cult.) in 

 1892, and again by W. R. Linton and myself (No. 259) in 1891, 

 merits notice here as probably combining these two species (with 

 another ?). It was named by S. J. Enander S. aurita x nigricans 

 X repens ? on specimens of both gatherings submitted to him ; to 

 me it seemed rather to be S. lapponum x nigricans x repens. 

 To both of us it appeared to be Heidenreich' s hybrid with the 

 addition of a third element. A description of it follows. 



A dwarf shrub, 1-2 ft. high, decumbent or ascending, with 

 tomentose young shoots, branches glabrous by winter, dull grey- 

 brown somewhat polished here and there; buds oval at length 

 glabrescent. Stipules almost suppressed, ovate when rarely pro- 

 duced. Leaf-blades f-2 in. long, oval-oblong, rarely broader 

 above the middle, acuminate, usually with a straight tip, narrowed 

 to the base, finely serrate with close or more distant teeth, 

 becoming dull green and glabrescent above, more persistently 

 grey-pubescent beneath (except the narrow basal leaves, which 

 are rather numerous). Catkins ? coeval with the leaves, fl. May- 

 June, about 1 in. long, elongate in fruit, with few small basal 

 leaves very silky at first ; bracts oblong-spathulate clothed with 

 long silky hairs upwards ; pedicels woolly-pubescent, lower ones 

 2-3 times as long as the linear-oblong nectaries ; ovaries narrow 

 long-conic, pubescent in the upper half, glabrous in the lower ; 

 styles long, stigmas broad rather short, undivided. 



In this plant S. Andersoniana appears in the pubescence and 

 modified blackening of the foliage and the glabrescence of the 

 lower part of the ovaries; S. repens in the habit of the plant, the 

 shape and size of the leaves and their occasional sparse serration, 

 and the many narrow basal ones ; S. lapponum (if present) in the 

 impressed nerves of some of the leaf-blades, the rather long 

 narrow nectaries, and some polish on the 1-year old branches. 



This form is from Perthshire. The S. nigricans-repens of 

 Heidenreich is from Tilsit, Prussia, and appears rightly named. 



