THE BOTANICAL EXCHANGE CLUB OF THE BRITISH ISLES. 
Thalictrum coilimim, V^ViWx. Cressbrook Dale, Derbyshire, nth 
July 1898. — J. C. Melvill, “Right.” — E. F. Linton. "'■T. expa 7 isuni^ 
jord., if the plant is fetid.” — J. Freyn. 
T. ripariujfi, Jord. Peat moors, Catcott Burtle, N. Somerset, 
22nd June 1898 — J. W. White. “The lax panicle and narrowly- 
ovoid fruit that distinguish this form are well shown on some of the 
sheets, although much of the plant was immature.” — J. W. W. “Cor- 
rect, in spite of the very close-set heads.” — J. Freyn. 
T. flavuni^ L., var. riifinerve (Lej. and Court.)? Originally from 
Llansilin, Denbighshire, where found by Miss Jones; cult. Balham, 
S. W. — Wm. Whitwell ; comm. E. F. Linton. “Mr. Whitwell has 
supplied me with several specimens from his garden of this plant, 
which he tells me Dr. Boswell Syme named T. tiigricans, DC., adding 
that ‘ Mr. J. G. Baker and Mr. N. E. Brown consider that it may be 
rightly [so] called’; and I send a few of the specimens to the Club, in 
the hope of getting further criticism on this handsome form. Messrs. 
Rouy and Foucaud (‘FI. de France,’ i., 25) make T. nigricans, DC., 
synonymous with T. exaltatum, Gaud., subsp. nudite^-ra^ieuin (Jord.), a 
Mediterranean subspecies usually littoral, with petioles and leaf-margins 
pubescent or glandular-pubescent. 'Phis subspecies is not likely to 
occur in a Welsh county, nor has the Llansilin plant its pubescence. 
I have suggested T. jiavum, L., var. rufiiurve (Lej. and Court.), as the 
probable name, to the description of which (l.c., i., 32) Mr. Whitwell’s 
plant agrees fairly well, the root being subcespitose, the leaves ex- 
stipellate, while its stipule-auricles are much like those of ordinary 
T. fiainifn^ — E. F. L. “ T. gallicum, Rouy and Fouc.” — J. Freyn. 
Ranunculus peltatus, Schrank, var. truncatus (Hiern). Stirchley, 
Salop, July 1898. — W. H. Painter. “Some of this is ordinary peltatus; 
other specimens show a tendency towards var. truficatusP — H. and J. 
Groves. 
R. Flammula, L., stout, erect form. Rowarth, Derby, 27th July 
1 898. — W. R. Linton. “W. Fla^yDnula, L., var.se^yalus, DC.” — J. Freyn. 
“ These ‘ vars.’ seem to have no permanence.” — E. S. Marshall. 
R. scoticus, Marshall. Shore of Loch Alvie, E. Inverness, 6th 
August 1898. — W. A. Shooi.breu. “W. Flammula, L., var. angusti- 
folius, Wallr.” — J. Freyn. In commenting on Herr Freyn’s opinion 
Mr. Marshall writes: “Is not the resemblance merely superficial? 
We have a frequent lake-side state of Fhwunula which simulates my 
R. scoticus." “I gathered specimens of this plant by L.^Morlich, E. 
Inverness, in 1887. 'Po me it appears only a variety of R. Flam- 
mula." — G. C. Druce. 
Caltha radicans, I'orst. ? River bank, Strathcarron, W. Ross, 
26th July 1898. — W. A, Shoolbred. “I should certainly place this 
to C. radicans, since I regard the rooting nodes as the important 
character and the shape of the leaves a trivial one.” — W. H. Beeby. 
