6l8 THE BOTANICAL EXCHANGE CLUB OF THE BRITISH ISLES. 
Thalictrum majus , Crantz. Gravelly shore of Lake Windermere, 
Westmoreland, August 1900. I understand by this species what used 
to be designated T. minus , L. in parte , or T. flexuosum , Bernh. — J. 
Cosmo Melvill. “This comes very near indeed to a specimen 
from Argyle which Mr. Ar. Bennett named for me T. majus.” — E. S. 
Marshall. “ Is T. collinum , Wallroth.” — E. F. Linton. 
T. Kochii , Fr. Origin, Fortingal, Perth; cult. July 1896-1900. 
The same as sent in 1898 by Rev. E. F. Linton. This plant has the 
ovoid carpels which are the distinguishing feature of T. Kochii. The 
other features, such as stems smooth, leafy from the base, leaf branches 
and stipules horizontal, are less satisfactory for certain diagnosis. — 
Wm. R. Linton. 
Ranunculus cambricus, Arth. Bennett. Root from Llyn Coron, 
Anglesea. Hort. Croydon, 1894. Cultivated specimens of this 
were submitted to Herr Freyn, who suggested U R. carinatusi Schur.” 
To this I cannot agree. R. carinatus , Schur., is a var.? of R. confusus , 
G. et G., while cambricus when growing (I had it in the living state 
for eight years) is essentially a modification of R. fluita?is on a small 
scale. By this I do not imply that it is a fluitans form, but that the 
habit of the plant is very near that of fluitans growing under cultiva- 
tion. Unfortunately, I could never get it to fruit, and the original 
specimens — “Coron Lake, Anglesea, J. Griffith” — are only in flower. 
Its position must remain doubtful until a series is gathered. See 
‘Report,’ 1892, p. 351. — Arthur Bennett. “R. cambricus, J. Griffith, 
‘FI. Anglesea and Carnarvon,’ p. 2, where this name is erroneously 
attributed to Mr. Arth. Bennett, who described it in ‘ Science Gossip,’ 
1892, p. 198, as R. aquatilis, var. cambricus. These specimens are 
from the classic locality, Llyn Coron, Anglesea, where this year I also 
found it as forma terrestris growing on the margin of the lake. I first 
found it at Llyn Coron in July 1875, when I sent specimens to Dr. 
Boswell Syme, who referred it to R. fluitans, var. Bachii. The plant 
is remarkably unvarying throughout the lake, and the peculiar curve 
of the leaflets may be noticed even in the mud form. No trace of 
floating leaves appear to be produced, and even in the terrestrial form 
the leaflets show no signs of coalescing. The petals are narrow, and 
so give a starlike appearance to the flowers. In the ‘ London Cata- 
logue ’ this plant is doubtfully put as a variety of Ranunculus fluitans, 
and it is possible that this view may be correct. Mr. Griffith records 
R. fluitans from the outlet of Llyn Coron growing with R. pseudo- 
fluitafis. At any rate, it can scarcely be a form of peltatus. Herr 
Freyn, some years ago, referred it to Batrachium carinatum, Schur., 
but Mr. Arthur Bennett did not agree with this determination. I 
have sent a series of specimens to my friend Herr Freyn, and I hope 
a definite name may shortly be given to this interesting Batrachian.” — 
G. Claridge Druce. 
R. fluitans, Lam. In the canal at Berwyn, near its junction with 
the River Dee, south-east Denbighshire, 14th April 1900. At this 
