53 § THE BOTANICAL EXCHANGE CLUB OF THE BRITISH ISLES. 
Sisymbrium, strictissimum , L., conf. ‘Journal of Botany,’ Jan. 
1898, p. 32. Native of Germany, Austria, and most European countries, 
westward and northward. Getting naturalized on the banks of 
R. Mersey (Lancashire and Cheshire), between Stretford and Chorlton- 
cum-Hardy. Discovered by Mr. Henry Hyde, of Manchester. 
Comm, by J. C. Melvill. 
Sisymbrium officinale , Scop., ‘FI. Carn.,’ ed. 2, ii., 26 (1772), var. 
leiocarpwn (Jord.), DC., ‘Syst.,’ ii., 460. Ullapool, West Ross. — 
G. Claridge Druce. 
S. Irio , Linn., ‘ Sp, PI.’ (1753), 659. A weed in the Botanic 
Garden, Oxford, June 1893. — G. Claridge Druce. 
Couringia orientalis , Andrz. in DC. ‘Syst.’ ii., 508 (1821). 
Waste ground near Oxford. This appears under the name of Erysimum 
perfoliatum, Crantz, in the ‘ London Catalogue,’ and is the Conringia 
perfoliatia of Link in the ‘ Enumeratio Hort. Berol.’ ii., 172 (1822). 
It has been found for the last twelve years by the railway every year 
near Oxford, and the statement by Mr. Britten in the ‘ Journ. Bot.,’ 
p. 106 (1898), that it has occurred “three times” in Berkshire is 
incorrect, as at least 40 specimens have been found. — G. Claridge 
Druce. 
Lepidium ruderale , Linn., ‘Sp. PI.,’ 645 (1753). In fields, garden 
ground, road sides, and waste places, in great quantities in the 
neighbourhood of Slough, andTaplow, Buckinghamshire, July 1897. — 
G. Claridge Druce. A new county record. See ‘FI. Berkshire,’ add. 
Thlaspi perfoliatum , Linn, ‘Sp. PI.,’ 641 (1753). Between 
Charlbury and Stonesfield, Oxfordshire, March 1884. — G. Claridge 
Druce. 
Diplotaxis muralis , DC., ‘Syst.’ II. (1821), 634; var. Babmgtonii 
(Syme). Near Oxford, June 1893.— G. Claridge Druce. 
Rapistrum rugosum , All. Barley alien, Twerton, Bath, 8th September 
1897. Growing plentifully where the siftings of eastern barley had 
been thrown. Vide ‘Journ. Bot.,’ 1897, p. 444. — S. T. Dunn. 
“ Correct.” — E. G. Baker. 
Viola palustris , L. Edge of ditch on the west shore of Loch 
Lomond, between Tarbet and Blarannich, Dumbarton, 30th Septem- 
ber 1897. Sent as a new county record for 99. — Charles Bailey. 
Also from Burnham Beeches, Bucks. A new county record for 24. — 
G. Claridge Druce. 
Polygala vulgaris , L. Castle meadows, in the neighbourhood of 
Abergavenny, Monmouthshire, 8th June 1S97 ; also on the ascent to 
Kymin Hill from Monmouth, 5th June 1897. Sent as a new county 
record for 35. — Charles Bailey. 
