210 THE BOTANICAL EXCHANGE CLUB OF THE BRITISH ISLES. 
Barbarea arcuata^ Reichb. — Origin side of drain-ditch, Upton- 
on-Severn, 19th May and 4th July 1906. — S. H. Bickham “ Right, 
I believe, seeds longer than broad, corolla persistent.” — A. Ley. 
“ Beautiful specimens of this plant, which is doubtless the B. arcuata 
of many English and Continental botanists, but it differs from the B. 
arcuata of Reichenbach (‘ leones FI. Germ.’ ii.. Fig. 4356) in a charac- 
ter on which Syme (‘ E.B.’ iii, vol. i., 173) lays great stress, namely 
in the seed being broad and short. In Reichenbach’s type, which I 
have also examined, the seed is long and narrow, i.e., more than 
twice as long as broad. This Upton plant is what in ‘ Flora of 
Berkshire,’ p. 44, I have called B. Vu/^aris, var. decipiens—B. lyrata 
Aschers., var. decipiens, but if anything the flowers are a trifle larger ; 
my plant being near to, if not identical with, the plant wrongly 
figured by Reichenbach in Sturm’s ‘ Deutschland Flora ’ as arcuata, 
and this may be the origin of the confusion respecting it by con- 
tinental authors.” — G. Claridge Druce, 
Arabis ciliata, R. Br. Growing in the barer places of the turf 
on sea sand, close to the coast in Dog’s Bay, Roundstone, Galway, 
Sept. 1906. Only astray plant was in flower. With it were myriads 
of Spiranthes spiralis, (L.) — S. autunmalis. Rich., having a delicious 
odour of white lilac. — G. Claridge Druce. 
Alyssum juaritimum, Lam. On waste ground at the railway 
station, Killarney, Kerry, Sept. 1906. — G. Claridge Druce. 
Cochlearia ? The Quarries, Wirksworth, Derbyshire, v.-c. 
57. C. alpina, H. C. Wats, is recorded from this station (‘ FI. Derby- 
shire ’). The shape of the fruit of these specimens does not quite 
agree with those of alpina which I have from the North. These are 
globose ; while I am under the impression that C. alpina should have 
somewhat tapering or pointed fruits. — W. Bell. “The fruits are 
those of C. officinalis. The Rev. W. R. Linton notes that the lime- 
stone plant (‘ FI. Derbs.’) considered by J. G. Baker to be intermedi- 
ate between littoralis and alpina becomes true alpina in cultivation. 
The Wirksworth plant is of Painter’s recording, I seej therefore not 
tested by W. R. L. in cultivation ; but may be the same as what he 
has grown.” — E. F. L. “ Wirksworth is given as a locality for C. 
alpina, H. C. Wats, in ‘ FI. Derbyshire,’ The foliage and petals 
decidedly favour that. In nature the shape of the capsules varies 
more than in books. I should say decidedly a form of C. alpina, 
rather than of officinalis.'' — E. S. M. “ The plant which I cultivated 
was from The Winnats, near Castleton ; the fruits were moderately 
pointed but not so much so as in Scottish specimens.” — W. R. L. 
C. danica, L. By the dry moat round Walton Gaol, S. Lancs. 
(59.) Flowers, May 1906; Radical leaves, Xmas. 1906. 'Phis 
plant is always a very small one, with the radical leaves only occa- 
