540 THE BOTANICAL EXCHANGE CLUB OF THE BRITISH ISLES. 
who remarked that the plant was curious, combining characters of 
both C. danica, L., and C. officinalis, L., and asked me to distribute 
specimens. I do not seem to have been the first to remark the 
plant, for recently, while going over some specimens in the Her- 
barium at the Royal Botanic Gardens, Edinburgh, I found the same 
plant in Herb, Col. James Brodie, M.P., F.R.S. (see Britton and 
Boulger, “ Index of British and Irish Botanists,” 1893, P- 23), 
labelled “Cochlearia danica, Linn., sp. pi. 903. Upon rocks on 
Inch Keith and other islands in the Firth of Forth and at 
Queensferry, with reddish flowers ” ; and on the label below the 
specimens, “ Cochlearia danica, var.” ; and again in Herb. Greville, 
“ Cochlearia danica, Linn. Near Kinghorn, Fife, 1837,” upon which 
is written in pencil by a former Keeper of the herbarium. “ Not 
C. danica, L., but I leave it in this folio for comparison with C. offici- 
nalis, var. new (Syme).” I hope to raise some specimens from seed 
and test it under cultivation. — McTaggart Cowan, jun. Excellent 
C. grcenlandica, L. — Edward S. Marshall. C. danica, L. The 
ovoid pouch, as well as the foliage and habit, point to this species. 
— H. J. Riddelsdell. 
Cochlearia . Aberlady Bay, Haddingtonshire, June 22, 
1910. — Ida M. Hayward. C. Wats. The pouch distinctly 
tapers at both ends. It may be var. micacea, but the ripe pouch 
does not seem narrow enough for that. — H. J. Riddelsdell. 
Specimens rather scrappy ; but I believe it to be C. groefilandica, L. 
— Edward S. Marshall. 
Sisymbrium altissitmun, Linn. On the banks of a brook run- 
ning from the Redbrook tinplate works. Forest of Dean, West 
Gloucestershire, v.-c. 34, September 13, 1910. — Charles Bailey. 
Yes ; a very frequent alien. — G. Claridge Druce. 
Brassica [ref. No. 4116]. Blewbury Downs, Berkshire, May 
1910. Is this not Kohl-Rabi ? It occurred as a relic of cultivation, 
but was a new form to me. The growing plants had clear sulphur- 
yellow petals entirely different in tint and somewhat in shape from 
those of the Swede Turnip. The stem was not enlarged at the base, 
being cylindric not tumid. — G. Claridge Druce. This comes near 
B. cretica, Lam. ; it should have a woody base, according to Boiss., 
‘FI. Orient.’ I. p. 391. — Charles Bailey. From the pale bull 
colour of the dried flowers, I suppose it to be B. Rutabaga, DC. ; 
in the ‘ Prodromus,’ I. 214, De Candolle does not mention this 
point, and only distinguishes it (as B. Rutabaga) from his a. com- 
munis of B. campestris, L., C. ?iapo-brassica, l)y the definition 
“radice florescente subglobosa.” Ai)parently a relic from a swede- 
field. — Edward S. Marshall. Is B. oleracea, L. I should think 
probably stray plants of “Thousand-headed Kale,” — John 
Percival. 
