KOTANICAI. EXCHANGE CLUB. 
O 
“ ricanincidas jluitana, Linn.” Mr. Brotlierstoii remarks of 
some specimens of a Kanimculus forwarded under tliis name ; — 
“ Common in tlie Tweed and its tributaries. I send a few different 
forms. Are any of them worth naming as varieties ?” Dr. Boswell 
labelled some of them with floating leaves, “ Bachii,” and appended 
the remark, “ I never saw floating leaves so well developed as on 
some of these specimens.” Professor Babington says, “ The Bachii 
of Brotherston is B. confusus."—T. E. A. B. 
“ E. tnincatus, var. Sutton Park, Warwickshire. July, 1876. 
Form without submerged leaves.” — James Bagnall. Aplant/with 
numerous large, broad floating leaves. Hardly ‘ without submerged 
leaves,’ for on one or two of the specimens a few small capillary 
submerged leaves are visible on young shoots, from the naked 
lower portions of the stems. — T. K. A. B. I have frequently seen 
B. truncatus with only floating leaves so late in the year as July ; 
possibly Mr. Bagnall’ s plant might be found to have them in May. 
— J. T. Boswell. Mr. Warren forwarded a Eanunculus found “in a 
pit in a brick-field at Burgess Hill, Sussex, August, 1876,” with 
the following remarks : “ What is this? The floating leaves are 
Lenormandi , and will not do in outline for any of i\iQ peJtatus section. 
The flowers are rather large for Lenormandi , but I have seen them 
in that sjDecies as big. Observe the submerged leaflets.” I sent 
this on to Dr. Boswell, with the note : ‘ A comparison of this with 
Mr. Bagnall’s B. truncatus var. from Sutton Park has satisfied me 
this must come in under peEatas, though in some respects simulating 
Lenormandi. It, however, differs, conspicuously from the latter in 
the shape of the petals and stipules, as also in the hispid carpels.’ 
— T. E. A. B. I should call this peltatus, truncatus. I see nothing 
peciiliar about it. — J. T. Boswell. 
B. truncatus. Honilby, Warwick. June 5, 1876. — E. L. Baker. 
This I look on as the normal form of B. truncatus . — J. T. Boswell. 
B. fioribundus, B&h. forma. Pond near Brockenhurst, S. Hants. 
This is peculiar by its overlapping generally entire leaf segments. 
April, 1876. — H. & J. Groves. Pool in gravel-pits, Mitcham 
Common, Surrey, June, 1876. — H. & J. Groves. These were sent 
to Dr. Boswell, with the remark, ‘ I am glad Mr. Hiern has seen 
these ; I should have been in doubt between fioribundus and 
truncatus.' T. E. A. B. — This seems to me B. truncatus, not fiori- 
bundus. A plant, sent under the name of B. floribtmdus, from ponds 
near York, by Mr. G. Webster, June, 1876, I should also call 
truncatus. B. fioribundus, from a slow stream, MitcheUdean Meend, 
Gloucester, April, 1876, Augustin Ley, is what I consider 
in its young state. A plant of the same name from Beausale, 
Warwick, June, 1876, E. L. Baker, is a rather small state of the 
plant. B. paiicillatus, “ Eiver Learn, Eadford, Warwick, July, 1876, 
E. L. Baker,” is the ordinary form without floating leaves ; but 
B. peltatus, var. pniiciUatus, from the Eiver Blyth, Stonebridge, 
Warwickshire, July, 1871, J. Bagnall, is B. fiuitans. — J.T. Boswell. 
B. fioribundus, from Brockenhurst, I think is peltatus, not fiori- 
bundus. B. elomjutus of Mr. Brotherston is, I think, peltatus. — C. C. 
Babington, 
