307 
arc above the average for adult trees of S. fragilis x triandra.— 
J. Fraser. S. decipiens Hoffm. (perhaps = fragilis x triandra). 
Decisive, in ray opinion, against fragilis are the much longer 
stamens, the almost rounded base of the leaves, which are also 
parallel-sided in the middle, and the strikingly glossy bark of the 
twigs. The fewness of the catkins is notable, and also the abund- 
ant sessile micro-glands on the upper surface of the leaves. — W. 
Watson. 
S. fragilis L. 5 [605]. Near Sewage Farm, Hitchin, Herts., 
Nov. 6, 1923, May 22 and July 29, 1924. Narrow ovaries 
(1 unfertilized). — J. E. Little. S. fragilis .— E. F. Linton. I 
agree to this. If you compare this with the $ [592] you will 
see that the serrations of the leaves of this are deeper and more 
irregular in size and distance apart. — J. Fraser. 
S. fragilis x pentandra 1 $ [556]. Watercourse near West 
Mill, Hitchin, Herts., v.c. 20, May and Oct. 1923, May and Aug. 
1924. For notes see last Report. — J. E. Little. I make this 
alba x pentandra. (1) Re S. fragilis x pentandra, Linton says, 
“Leaf-blades finely serrate, glabrous.” Wimmer (Sal. Europ.) 
says, “ Leaves regularly acutely cartilaginously serrate, pale green 
beneath ; even young ones quite glabrous or very glabrous (etiam 
novella glaberrima).” (2) Re S. alba x pentandra : Linton says, 
“ Leaf-blades pubescent at first, soon glabrous.” Wimmer says, 
“ Folia novella sericeo-pubescentia ” (3) On a flowering branch 
of these specimens I can see three unfolded leaves that are quite 
silky on the back. I can scarcely go beyond the descriptions of 
the great author on Salix. May is the time to examine this 
willow for pubescence, which is mostly caducous. — J. Fraser. I 
think S. alba x pentandra , for the direction of the hairs on the 
underside of the upper expanded leaves on the year’s shoots is 
exactly as in 'alba, not as in fragilis. — W. Watson. 
S. Lapponum L. Near Dalwhinnie, Inverness, July 1911. 
W. A. Shoolbred. A small, narrow-leaved form of S. Lapponum , 
with adpressed, almost silky pubescence on the underside of the 
leaves ; and very close to, if not identical with, S. Stuartiana Sm., 
of course not now retained even as a variety, though rather dis- 
tinct. — J. Fraser. 
A. Lapponum x repens. Glen Shee, E. Perth, v.c. 89, July 11, 
1906.— W. A. Shoolbred. Conforms very closely to the descrip- 
tion of E. F. Linton in his Monograph of Brit. Willows, although 
that was mainly taken from the plant raised by the author in his 
garden. The hybrid is known only from the Lochy Burn, Glen 
