32 
THE BOTANICAL EXCHANGE CLUB OF THE BRITISH ISLES. 
and L. dilatata. Were it as abundant as either of the two, instead of 
being very scarce, we might consider it as a form from which L. 
spimdosa on one side, and L. dilatata on tlie other, were diverging ; 
and the same might be said of L. utiginosa, from which Z. cristata 
diverges in one direction and Z. spinulosa in tlie other ; and, lastly, 
we have Z. remota, which connects Z. spinutosa^ or (as seems to me 
more probable) dilatata, with Z. Fitix-mast " — Ar. Bennett. “Mr. 
Ley has evidently taken the nomenclature of ‘ Lond. Cat.,’ ed. 9, 
p. 46, for granted.” — Ed. 
Lastroia dilatata, Presl., var. tanacetifolia, Moore. Pont Esgob, 
Herefordshire, 28th August 1901. Glandular form, with the thin 
lamina and small sori of var. ta>iaccfifolia. — ^Augustin Ley. “ Mis- 
printed ‘ tenacctifolia’ in ‘Lond. Cat.,’ l.c.” — Ed. 
F.(]uisetum sylvaticum, L., var. ^////^^^(Hoffm.). Harthill, Cheshire, 
15th August 1901. This is the only form of E. sylvaticu 7 n I have seen 
in Cheshire; in the Broxton Hundred of which, at any rate, it is a 
rare species. — A. H. AV’OLLEV-Don. “The form we call E. capillaj-e, 
Hoffm.; but a doubtful variety, probably the product of soil and 
situation.” — E. ¥. Linton. “ Hoffmann, ‘ Deutschlands Flora,’ pars 
ii., p. 3 (1795), adds under E. sylvaticum : ‘(Equis. capillarc, frondibus 
tenuissimus compositis sterilibus),’ a})parently meaning to express 
doubt of their specific distinctness. It seems to me a well-marked 
plant, as good as varieties usually are in the genus — which, perhaps, 
is not saying veiq' much. In Scotland I have frequently seen 
typical sylvaticum growing in situations similar to those which 
produce capillareP — Ed. 
E. hyemale, L. Sandy field near Weston-super-Mare,* North 
Somerset, 13th September 1901. — R. P. Murray and James' W. 
White. “Probably unknown in the county until observed, as I 
understand, by Mr. Corder, of Taunton. It is most remarkable that 
two Eguiseta, both practically unknown to Somerset botanists, should 
be growing together in considerable quantity and should have escaped 
observation until the present year.” — J. W. White. “ Probably a 
N. C. R., though on record for the county in ‘ FI. Bath Supp.’ It is 
a rare plant in the south, but I have it from Surrey and have seen it 
from East Kent.” — Ar. Bennett. 
E. variegatum, Schleich., a. are?iariuui, Newman. Sandy field, 
Weston-super-Mare, N. Somerset, 13th September 1901. — R. P. 
Murray and J. W. White. “ New to the county. It grows 
together with E. hyeinale in some abundance.” — J. W. White. “ Con- 
firmation of v.-c. 6. I am not sure as to the source of that doubtful 
record, but think it was Neivman in ‘ Phytologist,’ circa 1845-6.” — 
Ar. Bennett. 
Isoetes lacustris, L. Llynfach, Vale of Neath, y.-c. 41, Glamorgan, 
1901. See ‘Journ. Bot.,’ 1901, p. 344, Also discovered in 
Breconshire (42) and Caermarthenshirc (44) in July 1901. — H. J. 
Riddelsdell. 
