181 
made repeated observations and comparisons of the two sets and 
have failed to detect any difference. The}^ are affected by a gall 
which causes an arrest of the growth of the apex of the shoots, 
and the formation of a ‘rose’ of deformed leaves persisting 
through the winter, and very conspicuous among the bare twigs. 
I send a sheet showing this gall. — J. E. Little. “Looks rightly 
named.” — E. F. Linton. 
S. alba L., var. coerulea (Sm.) 2 . Planted, Hitchin, Herts., 
v.c. 20, from stands from Witham, Essex, in 1913 by Mr. J. 
Beddall Smith. Coll. J.E.L., April 20 & July 13, 1921. In 
October 1920 the leaves, while pubescent with appressed hairs 
beneath, were greenish below. Up to September 1921 the under 
surface of the lamina has remained covered with closely silky 
pubescence and very blue-grey in colour, except on the earliest 
leaves. The laminae are longer and broader than in typical 
S. alba (up to 10 cm. long and 2 cm. broad). The shoots of the 
year are of a greenish colour, and contrast with forms of Salix alba 
approaching var. vitellina which are not uncommon here (one 
sheet passed by E. F. Linton), as well as with var. vitellina 
proper. — J. E. Little. “Seems rightly named.” — E. F. Linton. 
S. alba var. vitellina (C.) x trianclra L. $ Osier bed, Cad- 
well, Beds., v.c. 30. Coll. J. E. L., April 8 and July 26, 1921. 
Trees 30 ft., planted about 6 ft. apart, from stands, having the 
outline of a Lombardy poplar. Twigs orange to golden yellow, 
terete. Stamens often 2, sometimes 3, or rarely 4. Leaves soon 
glabrous, and glaucous beneath ; margin sometimes finely serrate. 
The marginal glands are continued nearly down to the top of the 
petiole. — J. E. Little. “ I think your suggested solution is very 
likely right . . . The characters are rather strongly flavoured with 
S. triandra , in forms of which I have often been puzzled by the 
irregular number of stamens, possibly due to crossing ; the 
leaves, though serrate, seem half-inclined to be subentire in 
places. The terete twigs favour S. alba, and the colouring is 
strongly of S. vitellina ,” April 10, 1921. [And later], “Correct,” 
Oct. 1921. — E. F. Linton. 
x S. acuminata Sm. 2 . Pond on Midland Railway, near 
Icknield Way, Ickleford, Herts, v.c. 20. Coll. J. E. Little, April 
18 and Aug. 26, 1921. {See remarks in B.E.C.R. 1921.) “Very 
fine specimens of S. acuminata Sm.” — E. F. Linton. 
S. caprea x viminalis 2 Pond by Midland Railway, near 
Icknield Way, Ickleford, Herts., v.c. 20, April 18 and May 16, 
1921.— J. E. Little. “I suppose correct; but I am not quite 
satisfied that S. 'caprea is the other parent.” — E. F. Linton. 
