446 
with S. alba. The tree is what Dr. White named S.fragilis 
var. britannica F. B. White, but I do not regard it as 
anything but the ordinary S. fragilis. — J. Fraser. 
Salix alba x fragilis (S. viridis Fr.) (Det. J. Fraser) $ [713]. 
Grove Mill, Hitchin, Herts., June 4, July 16, 1927. — J. E. 
Little. This is S. alba x fragilis (S. viridis Fr.). The 
serratures are longer than those of S. alba. The leaves are 
broad like those of S. alba, and are silky before unfolding, 
but they become glabrescent as the summer wears on as a 
result of the effect of S. fragilis. The ovaries are shortly 
stalked, ovoid, and terminate abruptly below the short style, 
as the hybrid requires. — J. Fraser. 
Salix [ caprea x] viminalis. Arthur’s Bridge, Basingstoke 
Canal, Woking, Surrey. Catkins March 28, Leaves July 
25, 1927. — W. Biddiscombe. Some forms of the hybrids 
of the caprece group with S. viminalis are difficult to distin- 
guish from S. viminalis. But in this plant the leaves, the 
styles and the stigmas show nothing but 5. viminalis. — J. E. 
Little. It is S. viminalis Linn. The leaves are large, 
and long, but the very fine, almost silky, short and closely 
adpressed pubescence on the under-surface of the leaves 
in unmistakable. The catkins are relatively slender, 
with pale brown bracteoles, long styles and stigmas, con- 
forming to this species. The leaves of the hybrid have the 
pubescence or tomentum of the under-surface looser, and the 
hairs more curled, due to the influence of S. caprea.—] . 
Fraser. 
Salix caprea x viminalis (= S. mollissima Sm. f. rugosa 
Leefe.) Hedge, Ursleigh Hill, Pensford, N. Somerset, v.c. 6, 
Mar. 30, June 22, 1927. — Ida M. Roper. I agree with the 
name. The leaves are short, broad, and more or less coarsely 
crenate on the margin, and differ from the type in these 
respects. The rugosity of the upper surface of the leaves is 
always more or less entirely lost by pressure, while being 
dried.— J. Fraser. 
Salix acuminata Sm. $ [513]. Stratiotes Pond, Ickleford, 
Herts., v.c. 20, Mar. 15, Oct. 1, 1927. See W.E.C.R. 
1921, 181. — J. E. Little. Quite correct, except that it 
should be written x S. acuminata Sm. to indicate that it is 
a hybrid, though the exact parentage has never been proved. 
It is always $. The size of the leaves would indicate S. 
