H 
BOTANICAL EXCHANGE CLUB. 
“ Ranimculus pseiulu-jiuitans, Newb.” Latlikil Dale, Derbyshire, 
17tli July, 1876. This species is common in the Biver Wye, into 
which the Kiver Lathkil runs, but generally in small patches. In 
the Lathkil, however, the water is hidden by the foliage and flowers, 
for long lengths of the river’s course. — Charles Bailey. A peculiar 
plant, with leaf segments shorter than in ordinary penicillcUus ; in 
fact, not longer than in luxuriant tricoj^hi/lliis, or Drouctfi, only 
slightly collapsing ; the petals large, as' in ordinary penicillatus or 
jionbundus. I believe it the same as an unnamed form growing in 
the Eiver Maram, Welwyn, Herts, for specimens of which I am 
indebted to Mr. Blow. In the latter the carpels are bristly-hah’y ; 
but as there is no mature fruit on Mr. Bailey’s specimens it cannot 
be seen whether the two agree in this feature. — T. B. A. B. I 
agree with Mr. Briggs that this plant comes very near the puzzling 
form of jR. aquatilis which Mr. Blow found at Welwyn. The 
carpels in Mr. Bailey’s plant are hairy in their young state, but the 
flowers are larger than in the specimens of the Welwyn plant 
which Mr. Blow sent me. Mr. Briggs’s remarks point out the 
distinctions between Mr. Bailey’s plant and R. penicillatus very 
clearly ; I think it would be advisable that he should give a name 
to the form which seems to deserve one as much as R. Jionhundiis. 
— J. T. Boswell.. I hardly think that this is the peatciRrttws. It 
seems to me to be only a form of heterophyllus. — C. C. Babington. 
“B. triphyllus, Wallr.” Ditch, Mitcham Common, Surrey, 
June, 1876. — H. Groves. Mr. Baker says Mr. Hiern has seen 
this. “ R. triphyllus." Pit in Park, Tabley, Cheshire, June, 1870. 
I follow Mr. Hiern in thus naming this specimen. — J. L. Warren. 
Of Mr. Grove’s plant from Mitcham, Dr. Boswell says: “This 
plant is the one I had in view in describing R. heterophyllus in the 
third edition of ‘ Engl. Botany.’ The carpels behig glabrous, or 
more or less hispid, I believe to be an inconstant character, and 
that this form is only distinguishal)lc from radians and (iodronii by 
its larger flowers.” Of the Tabley plant : “This is heterophyllus, 
Fries., ‘ E. B.’, ed. hi. The carpels are conspicuously hispid, 
contrary to Mr. Hiern’s statement in ‘ Journal of Botany.’ ” — J. T. 
Boswell. R. triphyllos, from Mitcham, Mr. Groves. If this is 
indeed the triphyllos of Hiern, his idea of it is very different from 
mine. I call it heterophyllus, and in a not uncommon form. Both 
of Mr. Harbord Lewis’s plants I believe to be forms of my hetero- 
phyllus, not radians. I say the same of Mr. Baker’s two plants 
from Warwick. — C. C. Babington. The plant sent by Mr. Harbord 
Lewis as R. capillaceus, ThuilL, from ditch at Crosby, Lancashire, 
seems to be R. suhmersus, i.e., R. heterophyllus, Bab., without 
floating leaves ; but the specimens are too imperfect to enable 
me to be sure of the name : they have no mature fruit. — J. T. 
Boswell. 
“ R. radians." Plentiful in a pond at Floors, Boxburgh, July, 
1876. — Andrew Brotherston. With the note, by Dr. Boswell, 
appended: “ R. Godronii. See the hairs on the under side of tlu' 
floating leaves.” I agree with Dr. Boswell, and say Godronii. — C. 
C. Babington. 
