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submerged by a small pond on the higher part of the Green. 
I regard it as a widespread variation typical of unduly moist 
situations. Thus on Mitcham Common, Surrey, I have known 
the same form growing in a “ splash pool ” for some years. 
At this locality it is frequently submerged to the depth of 
about a foot during the first few months of the year. The 
characteristics are a tall, seldom branched stem, bearing 
cauline leaves with very narrow leaf -segments. The radical 
leaves are elongated with a few pairs of shortly stalked 
rotund leaflets which are not distinctly cordate at the base. 
The flowers are white (or very pale in colour). It probably 
falls under C. pratensis L. var debilis DC. (C. fragilis Degl. 
ap. Lloyd FI. Guest Fr.). — J. E. Lousley. Fine specimens 
of this growth -form of C. pratensis, which is common in 
wet situations. It seems to me very unwise to give varietal 
names to such growth -forms ; they can hardly be termed 
even ecads. — E. Drabble. 
Brassica Rapa L. Banks of R. Chew, above Pensford, 
N. Somerset, June 8, 1931. Autumnal seedling leaves, 
hispid, irregular in shape and size, and darker in colour, 
August 28. Abundant and probably native in the Chew 
Valley, as suggested by J. W. White in his Flora of Bristol . — 
H. S. Thompson. Might not this be var. sylvestris Wats. ? 
See Flora of Surrey, 1931, 139-140. — E. C. Wallace. I 
think Mr. Wallace may be right, though Mr. Fraser’s note 
says “ Seems to differ from the Turnip ( sylvestris ) of the 
Thames Valley in the lack of a tuberous root. The slender- 
rooted form is admitted in the French floras.” — H. S. T. 
Thlaspi alpestre L. About the Lead Mines above Llanrwst, 
Carnarvonshire. [Ref. C 12], June 10, 1931. — J. E. Lousley. 
See Report 1929-30, p. 15 for an interesting discussion on 
plants from this locality. Dr. Drabble said : “ The long 
style removes it from sylvestre and brachypetalum,” (but he 
rectified this in the next sentence. — Ed.). However it appears 
to fit sylvestre better than it does the other forms given by 
by Rouy. Since the style in T . silvestre Jorcl. appears to vary 
considerably, I am not satisfied that length of style excludes 
the plant from this species. In the clavis Rouy gives T. 
alpinum Crantz and T. silvestre Jord. as the only two species 
under “ Style plus ou moins allonge, egalant au moins les 
lobes de la silicule ou les depassant longuement.” Further 
under T . silvestre Jord. he says “ Silicules obovees, cunei- 
