ro THE BOTANICAL EXCHANGE CLUB OF THE BRITISH ISLES. 
B. prcBcox^ R. Br. From ballast at Llwydcoed, near Aberdare, 
Glamorgan, June 1901 and May 1902. New county record. — H. J. 
Riddelsdell. 
Draba aizoides, L. Limestone rocks on the coast of Gower, 
Glamorgan, April 1904. I send these sheets as an occasion for 
stating my opinion that the plant is aboriginal with us. I doubted 
this for a long time ; but I have frequently sought along the clilTs 
of Gower, and have found it in so many different situations, and 
under such conditions, that I do not retain the slightest doubt 
upon the subject now. The plant was first discovered on Pennard 
Castle — the most easily accessible of its localities, and consequently 
is frequently given in handbooks as simply from ‘ Pennard Castle ; ’ 
and this has prejudiced many minds against it. But it does not 
occur there in its greatest quantity. It occurs from Pwll-du Head 
to Worms Head : (i) for several miles of coast from the former 
to Pennard Castle ; and (2) much further west about Mewslade 
Bay and Worms Head. In the former locality it is in great 
profusion. Its extremes of distribution are (in a direct line) 12 
miles apart. I have not found it on the limestone N. of Worms 
Head. — H. J. Riddelsdell. Native on limestone cliffs, W. of 
Pwll du Head, Gower, Glamorgan, 12th April 1904. — E. S. 
Marshall. 
Erophila, Ref. No. 2828. Limestone quarry, Portskewet, 
Monmouth, 15th April 1904. Allied to E. stenocarpa, Jord., and 
perhaps also to E. hirtella^ Jord. — E. S. Marshall. 
Cochlearia 7 uicacea^ E. S. Marshall. Summit (above 2,750 
feet) of the Little Culrannoch, Forfar, in plenty, 27th June 1904. 
This plant was referred in 1889 by Prof. J. Lange to C. danica^ L., 
which is very different. Nor is it ordinary C. alpitia^ H. C. Watson. 
It agrees very well with the original Ben Lawers form of my C. 
7 tiicacea (which, but for its being perennial. Prof. Lange would have 
likewise been inclined to name C. da 7 iica). — Edward S. Mar- 
shall. Also sent by Mr. W. A. Shoolbred from the same 
locality. 
Sisy 77 ihriu 77 i Colu 77 incE, Jacq. Waste ground, St. Philip’s, 
Bristol, 13th June 1904. — J. W. White. S. CoIu 77 it 7 cc, Jacq. 
(1776), is apparently a synonym of S. oneTitale, L. (1759). — J. G. 
Sisy 77 ibrui 77 i striciissi 77 iu 77 i, L. In rough ground surrounding 
the bleach works of Messrs. Melland and Coward, Ltd., on the 
right bank of the River Mersey, Heaton Mersey, South Lancashire, 
30th Aug. 1904. — Coll. J. E. McDonald, Comm. Charles Bailey. 
Mr. Bailey remarks, in Proc. Manchester Lit. and Phil. Soc., “ The 
Heaton Mersey plant appears to have a more vigorous and ample 
growth than obtains in continental examples, but the chief difference 
