644 THE BOTANICAL EXCHANGE CLUE OF THE BRITISH ISLES. 
by Mr. Townsend some years since. Messrs. E. F. Linton and 
Arthur Bennett are disposed to consider it correct. Plant grey-green, 
erect ; a well-marked form. — E dward S. Marshall. 
Sctlicornia herbacea , L., var. stricta , Dum. Confirmed by Mr. Ar. 
Bennett. Hayling Island, v.-c. n, S. Hants, 13th September 1900. 
Seeds ovate-oblong, very hairy. Erect; grass-green. — E. S. Marshall. 
Polygonum aviculare , L., var. Longridge, W. Lancashire, August 
1900. — J. A. Wheldon. “Var. microspermum, Jord.” — J. G. Baker. 
“Var. rurivagum , Jord.” — E. F. Linton. 
P. minus , Huds. Sandy part of Shalford Common, Surrey, 5th 
September 1900. — J. and A, Bennett. 
P. mite , Schrank, forma alba. I think I am right in identifying 
this pretty form with the above name. It was abundant over the bed 
of a dried-up pond, and for some distance along a ditch by the road 
between Hurst and the Loddon, Berks, September 1900. — G. C. 
Druce. “Is a rather strong plant of P. minus , Huds. The white 
flowers are very unusual in this species. I do not remember to have 
met with them before.” — E. F. Linton. 
Euphorbia Cyparissias , L, Field, Lytham, W. Lancashire, May 
1899-1900. This field is shortly to be redrained, and botanically 
spoilt.- — J. Cosmo Melvd.l. 
E. exigua, L., var. retusa , DC. Field near Little Stretton, 
Leicestershire, July 1900. — A. B. Jackson. “This is nearer the type 
than the var.” — E. F. Linton. 
Betula alpestris , Fries. {B. nana ? x pubescens $ , probably). 
Below Ben Loyal, v.-c. to 8, W. Sutherland; at 800 feet, with the 
parents, 7th August 1900. Agrees well with description, figure in 
‘FI. Danica,’ and type-specimen in ‘ Herb. Brit. Mus.’ (published in 
‘Herb. Normale’ as “ B. humilis , Hartm.”), quoted by Fries in 
‘ Summa Veg. Scand.’ as being his plant. Certainly a hybrid. — E. S. 
Marshall. 
Sal ix fragilis , L., type. River bank, Foy, Herefordshire, April 
and June 1900. — xAug. Ley. “Typical S. fragilis. ” — F. F. Linton. 
S- fragilis x alba. River bank, Foy, Herefordshire, April and 
Jnne 1900. Name given by Rev. E. F. Linton. — A ug. Ley. 
S. cinerea x repens. Ardskinid, Tongue Bay (with parents), v.-c. 
108, W. Sutherland, 23rd July 1900. — E. S. Marshall. 
S. aunta x Caprea , L. Edlaston Coppy, near Shirley, S. Derby- 
shire, 19th May and 26th July 1900.— W. R. Linton. 
-S'. Caprea x cinerea. Alstonfield, N. Staffordshire, April-August 
1893. These specimens are from a bush which I have had under 
