476 THE BOTANICAL EXCHANGE CLUB OF THE BRITISH ISLES. 
v.-c. /a, Nov., 1909. A new County record. Name passed by 
A. Fryer. — G. C. Druce. 
Pdtamogcton ianceolatus^ Sm., var. hibernicus^ Ar. Benn. Cahir 
River, Co. Clare, Ireland, June 11, 1909. Coll. Pat. O’Kelly. 
Coram. S. H. Bickham. The variety only occurs in one place (so 
far as I know), and is a much larger plant than this. — A. Bennett. 
Yes; the specimen is rightly named. — Alfred Fryer. Mr. P. B. 
O’Kelly showed me this plant in the Cahir River, Co. Clare (locus 
classicus) in June last, but it was then immature, so 1 induced the 
discoverer to send more matured examples to Mr. Hunnybun. It 
did not strike me as being identical with the Anglesey plant. Mr. 
O’Kelly tells me it is a very rapid grower, and alters much in 
appearance. Perhaps it is the older and more luxuriant plant which 
has been named var. hibcrnicus. Whether type or variety it is limited 
to a very restricted area. — G. C. Druce. 
Potamogeion lucem^ Linn., var. acuminatus^ Fries. Wood-Walton 
Fen, Hunts., v.-c. 31, August 5, 1909. Coll. E. W. Hunnybun. 
Comm. S. H. Bickham. This is the plant so named here and on 
the Continent. The best specimens I ever saw were gathered by me 
at Surlingham Ferr}', Norfolk, but Mr. Fryer will not have it that 
there is any variety in any of them. — A. Bennett. 
Fotamogcton Marians, Fryer. Drain ditch, Witcham Medlands, 
Cambs., v.-c. 29, September 9, 1909. Coll. E. ^V. Hunnybun. 
Comm. S. FI. Bickham. Yes ; small neat specimens, smaller than 
the American specimens, which however vary so that had not Dr. 
IMorong himself gathered them off the same root I could not have 
believed it. Certainly species have been made on lesser grounds. — 
K . Bennett. 
Potawogcton tric/ioides, Cham. Drain ditch, Hammond’s Fiau, 
Cambs., v.-c. 29, September 9, 1909. Coll, tk W. Hunnybun. Comm. 
S. H. Bickham. Yes; but having no fruit one cannot specify the 
variety. Usually our British plants fall under Caspary’s var. Trim- 
ineri, the typical plant in the Berlin Herbarium being without those 
corrugations of the back of the fritit which ours has when ripe ; 
but it varies greatly, the most extreme form being found in Bohemia 
as P. condlyocarpiis, Tausch. — A. Bennett. Curiously the plant of 
Tausch in ‘Index Kewensis ’ is made synonymous with P. de?isi(s / 
a huge discrepancy.— G. C. Druce. 
Scirpus compressus, Pets. King's Norton, Leics., v.-c. 55. 
September i, 1909. This is sent as a new record for Leics. 
(See ‘ Journ. Bot.’ pp. 430, 431, 1909.) — A. R. Horwood. 
