622 THE BOTANICAL EXCHANGE CLUB OF THE BRITISH ISLES. 
Thlaspi hirtum of Linnaeus, which at present is not known to grow 
in Britain. — G. Claridge I)ruce. “ Lepidium Smithii , Hook.” — 
F. Townsend. 
Viola ericetorum x Riviniana. Shirley Park, Derbyshire, 5th June 
1900. Growing in great quantity with the parents over a considerable 
area of peaty turf in the open parts of the wood. — Wm. R. Linton. 
“ In the dried condition the petals look rather too narrow. In my 
Bucks hybrid they are distinctly broader. I suppose V. silvestris 
was not present in Shirley Park?” — G. C. Druce. 
V lactea , Sm. Rare amongst Ulex , Rosa spinosissima , Cirsium 
pratense, etc., on a damp heath by the sea at Beckton Bunney, S. 
Hants, June 1900. — J. C. Melvill. 
V. nana, Corbiere. Seed from Jersey; hort. Bournemouth, 6th 
June 1900. These are not, strictly speaking, cultivated plants, being 
self-sown on the poor sandy soil of the Tertiaries from which the peat 
has been pared off, and but one generation removed from the crop 
grown from seed Miss Dawber sent at my request from Guernsey. 
Though this plant has been circulated before, it has been mostly under 
a nomen nudum , and we are grateful to Mr. E. G. Baker for giving us 
the synonym (‘Journ. Bot.,’ 1891, p. 11). I wished to test its con- 
stancy, and, this being satisfactory, I am inclined to regard it as a 
good subspecies, and a species rather than a variety. — E. F. Linton. 
V carpatica , Borb. Hort. Shooter’s Hill, 12th July 1900; seed 
from potato field, Knighton, Radnorshire. Named by Mr. E. G. 
Baker, who adds: “This plant in all its leading characters agrees 
with V. carpatica , Borbas in Koch. £ Syn.,’ ed. iii., p. 222. It differs 
from the type in one or two smaller details, such as having longer 
internodes.” See ‘Journ. of B.,’ 1901, pp. 10-n. Mr. Baker agrees 
with me that it is almost hopeless to make our arvensis fit any 
described species satisfactorily. — A. H. Wolley-Dod. 
V. Deseglisei, Jord. ? Oatfield, Tilston, Cheshire, 20th July 1900. 
These specimens are drawn up by standing oats. On the margins of 
the field the plants were decumbent and much more diffusely branched. 
It represents, I think, the ordinary V. arvensis of Cheshire. I thought 
it would fall under V. ruralis , Jord., but Mr. E. G. Baker writes : — 
“ Your plant is certainly closely allied to V. ruralis , Jord., but in 
Rouy and Foucaud the clavis character for that species is ‘ Calice 
ordinairement glabre, non cilie, capsules ovoides, courtes,’ which 
cannot be said to agree with your plant. It belongs to the series with 
median lobe of the stipules foliaceous, and, judging from specimens 
we have from M. Deseglise, must be very near V. Deseglisei , Jord.” — 
A. H. Wolley-Dod. 
V. agrestis, Jord.? Railway bank, Malpas, Cheshire, 15th July 
1 900. These are all pieces of one very luxuriant plant. Mr. E. G. 
Baker writes : — “ The specimens of V. agrestis, Jord. in the British 
