SALIX 
67 
S'. cinerea x purpurea Wimmer FI. Sckles. Nachtr . 477 (1845)!; in Flora xxviii, 435 (1845); A. et 
G. Camus Classif Saul. 275 (1904) excl. syn. 5 . ole'ifolia Smith; v. Seemen in Ascherson und Graebner Syn. iv, 
294 (1909); 5 . pontederae Villars Pl. Dauph. iii, 766 (1789); S. pontederana Willdenow Sp. Pl. iv, 661 (1805); 
x S. sordida Kerner in Verhandl. Z.-B. Gesellsch. Wien x, 257 (i860); White in Journ. Linn. Soc. xxvii, 450 (1890). 
leones: — Forbes Sal. Woburn, t. 43, as S', pontederana ; Reichenbach Icon. t. 587, fig. 2037 [1237], as S. 
pontederana. 
Camb. Brit. FI. ii. Plate 67, b. (a) Shoot with pistillate catkins. ( b ) Leaves. ( c ) Pistillate flowers (enlarged), 
Cambridge Botanic Garden (R. I. L.). 
Exsiccata : — Leefe, ii, 33 ; iii, 59, as S . pontederana (cf. Journ. Bot. x, p. 106 et 212); E. F. et W. R. Linton, 81 ; 
Reichenbach, 2326, as S', pontederana. 
Shrub. Young branches often glabrous at maturity, long, straight. Laminae subglaucous under- 
neath. Catkins on short leafy peduncles. Nectary yellowish or greenish-yellow. Filaments hairy 
towards the base, usually more or less connate. Anthers yellow or reddish-yellow. Style short 
or absent. Stigmas yellow, then reddish. Ovaries pubescent. 
Where S. cinerea and S. purpurea grow together, intermediates between them appear to be not uncommon. Most 
of the intermediates are more like S’, cinerea than S', purpurea ; but it is usual to regard all such plants as of the 
above parentage which, no matter how close to S. cinerea they appear to be, have the filaments more or less united. 
Some forms of the hybrid are not infrequently mistaken for S. cinerea subvar. oleifolia. 
Here and there, with the putative parents, northwards to Perthshire. 
Scandinavia, Denmark, Germany, France, central Europe. 
5 . nigricans x purpurea Wimmer in Denkschr. Schles. Gesellsch. 154 (1853); A. et G. Camus Classif. 
Saul, ii, 1 15 (1905); x S. vaudensis A. Kerner in Verhandl. Z.-B. Gesellsch. Wien x, 263 (i860); x S. dubia An- 
dersson in DC. Prodr. xvi, pt. ii, 314 (1868). 
leones : — Forbes Sal. Woburn, t. 117, as S. vaudensis ; A. et G. Camus op. cit., Atlas ii, t. 7 (40), fig. R — U, 
as x S', dubia. 
Given in Druce’s List of British Plants as having been found in Dumfriesshire. 
It is recorded for Germany and Austria. 
•S. phylidfolia x purpurea A. et G. Camus Classif. Saul, ii, 116 (1905); x S. secerneta F. B. White in 
Ann. Scott. Nat. Hist. 65 (1892). 
leones: — Camb. Brit. FI. ii. Plate 68, a. (a) Shoot with staminate catkins, (b) Barren shoot. ( e ) Staminate 
flowers (enlarged). Cambridge Botanic Garden (R. I. L.). 
Exsiccata : — E. F. et W. R. Linton, 82. 
Shrub. Leaves not unlike those of S. phylidfolia. Staminate catkins much narrower than 
in that species, and resembling those of S. purpurea , as also do the coherent filaments ; May. 
S. croweana Smith in Trans. Linn. Soc. vi, 117 (1802) is sometimes referred to this hybrid, on account of its more or 
less connate filaments. However, connate filaments may occur when there need be little or no suspicion of hybridisation 
with S. purpurea ; and, in the absence of stronger evidence than the character in question, we prefer to follow White {Journ. 
Linn. Soc. xxvii, 398 (1890)), and regard A. crowiana as a form of S. phylidfolia (see page 43; and see also White in Ann. 
Scott. Nat. Hist. 65 (1892)). It has also been urged that S. crowiana is a hybrid of S. arbuscula and S. phylidfolia. 
S. phylidfolia x purpurea, in the sense here defined, is a very rare and critical plant. It was described by 
White from specimens collected by Mr James Fingland, in Dumfriesshire; and Linton’s no. 82 is also from this 
county. Not known elsewhere. 
*S. purpurea x repens Wimmer FI. Schles. Nachtr. 482 (1845); in Flora xxviii, 435 (1845)!; A. et 
G. Camus Classif. Saul. 287 (1904); v. Seemen in Ascherson und Graebner Syn. iv, 302 (1909); Rouy FI. France 
xii, 231 (1910); S', doniana 1 Smith Eng. FI. iv, 213 (1828)!; Syme Eng. Bot. viii, 219 (1868); S'. parviflora Host 
Hist. Sal. 49 (1828); x S. parviflora A. Kerner op. cit. p. 271. 
leones: — Host Hist. Sal. t. 49, as S. parviflora-, Forbes Sal. Woburn, t. 85, as S. doniana ; Borrer Eng. 
Bot. Suppl. t. 2599, as S. doniana\\ Reichenbach Icon. t. 584, fig. 2033 [1233], as S. purpurea var. sericea-, A. et 
G. Camus op. cit., Atlas, t. 27, fig. K — P, as x S. doniana. 
Camb. Brit. FI. ii. Plate 68, b. (a) Shoot with staminate catkins, (b) Barren shoot, (c) Staminate 
flowers. ( d ) Staminate flowers (enlarged). From a plant produced by crossing S. purpurea and S. repens (Rev. 
E. F. Linton). 
After George Don (1764 — 1814), of Forfar. 
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