348 
Mercurialis annua L. Arable field on Lythe Hill Estate, near 
Haslemere, Surrey, July 23, 1925. — I. A. Williams. Only 
recorded from near Dorking Station in Dunn’s Flora of South- 
West Surrey. This Haslemere locality was shown me by Mr. 
E W. S wanton, who says the plant has been there for several 
years. The average size of the female plants was much greater 
than that of the males. Is this usually the case 1 — I. A 
Williams. 
Betula pubescens Ehrh., var. paroifolia. Natural hill-wood 
near Laggan Bridge, Easterness, v.c. 96, July 26, 1911. Coll. 
E. S. Marshall. Comm. Nat Mus. of Wales. For note on this 
plant see B E C. Report for 1911, p. 123, and W.B.E.C. Report, 
1911, p. 361. It appears to be a mountain form of Betula 
pubescens Ehrh. — A. B. Jackson. 
Salix triandra x viminalis , var. Trevirani (Sprengel). Near 
the Pumping Station, Mortlake, Surrey, v.c. 17, catkins May 1, 
leaves July 17, 1925. The catkins are not in all cases as good 
as they should be. They are rather silky and white for some 
time before the stamens elongate, and they get gathered by the 
general public. The stipules are liable to ripen and fall off early. 
The earliest ones are broadly ovate and truncate, gradually 
changing to oblong and oblique like those of S. triandra, while 
the uppermost are more or less pointed. Stamens 2 — 3. — J. 
Fraser. 
S. fragilis L. $ . [589.] Pegsdon, Beds., v.c. 30, May 4 
and Sept. 18, 1925. — J. E. Little. For notes, see B.E.C. Report 
1924, p. 736. This broad-leaved form is not infrequent and is of 
wide distribution. I have seen it this year, 1925, in Sussex 
(Black Down, planted), Surrey (near Cut Mill Pond), Herts. 
(Hitchin and Welwyn), Norfolk (Wallington Park and Wretton 
Fen). — J. E. Little. Later: This spring, 1926, I have procured 
the flowers, which are, I believe, regularly diandrous. — J.E L. 
This is what I call S. fragilis x triandra. The leaves are too 
broad for their length and too dark green for S. fragilis. The 
leaves are also large for this hybrid. 1 have gathered broader 
ones, but they were the result of breakages by the wind When 
the catkins are half grown they are very shaggy, with yellow- 
grey hairs that fall off quickly as the leaves reach full length. 
The nectaries are often very erratic and give rise to stamens or 
small ovaries. The catkins are too stout for S. fragilis, and often 
bifurcate. — J. Fraser. 
