24 THE BRITISH WILLOWS 



bracts oblong or obovate-oblong, subobtuse, ferruginous below the 

 blackened top, silkily pubescent ; $ with filaments combined 

 below and pubescent at the base, anthers purplish ; $ peduncled, 

 with a few small leaves ; ovaries ovate-conic becoming ovate- 

 lanceolate, tomentose; pedicels 2-3 times as long as the quadrate 

 nectaries ; stigmas oval-oblong, sessile or subsessile. 



Like S. cinerea x purpurea but with more slender and quickly 

 glabrescent twigs, buds shorter, leaf-blades rather smaller, more 

 dentate, and somewhat rugulose at first ; catkins and ovaries 

 more slender. 



First found at Rothbury, Northumberland, and issued by Rev. 

 J. E. Leefe as S. Pontederana ?, to which it is closely allied ; 

 near Thornhill, Dumfriesshire ; Perthshire (Hb. B. White). 

 Europe ; France, Germany. 



Salix aurita x cinerea x purpurea Scholz in Sched. Fl. 

 Silesiaca (1899). 



Syn. S. confinis Camus, Monogr. ii. 280 (1905). — S. cinerea x 

 aurita x purpurea? Seemen, iv. 300. 



Exs. Hb. B. White, Nos. 191, 438? 439 (as S. sordida). 



Like S. sordida Kern. (S. cinerea x purpurea), as it was named 

 by Dr. F. B. White, but showing besides evidence of S. aurita in 

 the more slender twigs, the short subglobose buds, the obliquely- 

 pointed stipules, and the oblong-spathulate floral bracts which are 

 ferruginous below the blackened tips; fl. April-May. 



Riverside near Perth where S. aurita, S. purpurea and x S. 

 sordida grow together. Europe : Silesia. 



Salix aurita x phylicifolia x purpurea. 



Syn. S. sesquitertia (S. purpurea x aurita x phylicifolia) 

 B. White in Ann. Scot. Nat. Hist. (1892), 66. 



Exs. E. F. & W. R. Linton, No. 52. 



A shrub 3-5 ft. high, with slender branches slightly pubescent 

 when young, soon glabrous, at length dark brown and somewhat 

 shining. Stipules small roundish or reniform, rarely persistent. 

 Leaf-blades l|-2^ in. long, oblong-obovate rather abruptly pointed, 

 crenate-serrate, rugulose when young, glaucous beneath, thinly 

 pubescent at first, soon glabrous. Catkins f-l| in. long, fl. May, 

 subsessile, monoecious with $ flowers at and near the top and 

 3-5 small leaves at the base, filaments connate through their 

 whole length, anthers 4-chambered ; bracts oblong-obovate rounded 

 above, reddish-brown below the blackened tip, clothed with long 

 white pubescence ; ovaries conical, tomentose, shortly pedicelled ; 

 pedicels pubescent, about twice as long as the short nectaries ; 

 stigmas usually entire, rather shorter than the moderate style. 



Banks of the River Nith, near Sanquhar, Dumfriesshire ; one 

 bush only, discovered by Mr. James Fingland. 



In foliage this willow is much like S. aurita x phylicifolia, 

 the S. purpurea element being conspicuous in the catkins only. 

 The monoecious flowers are of course no part of the characters of 

 X 8. sesquitertia ; the condition is one that occurs now and then 

 in some hybrids, seldom in undiluted species. 



Endemic in Scotland. 



