448 THE BOTANICAL EXCHANGE CLUB OF THE BRITISH ISLES. 
to R. oigodadiis, Afuell. and Lefv., as an aggregate species. It is 
especially interesting as being nearest to var. Rloxaviianus, Golem., 
in the shape of its Its. and perhaps in the colour and clothing of its 
stem and to my var. Nnvbouldii in the leaf-toothing, while in other 
respects most like our type as it occurs abundantly in Devon and 
Herefordshire. — W. M. Rogers. 
Rubus Griffithianus, Rogers. Scattered about at several 
stations near Marshbrook, Salop, v.-c. 40, picked in company with 
Rev. W. M. Rogers. New County record. — Augustin Lev. 
R. melanodermis, Focke. Radyr, Glam., v.-c. 41, Aug. 4, 
1909. Not uncommon in this neighbourhood.. — H. J. Riddels- 
DELL. Identical with the Dorset and Hants type. — W. M. Rogers. 
R. dumetorum^ Wh. and N., var. britannicus (Rogers )h Old 
Post Road, Bonvilstone, Glam., v.-c. 41, Aug. 6, 1909. It also 
occurs further on, along and near the Cowbridge Road. — H. J. 
Riddelsdell. I think a very strong form of my var. britannicus, 
though perhaps going off slightly from that towards var. ferox, 
Weihe. “It must always be remembered that in these dunietornm 
forms we have a series, with many intermediates.” — W. M. Rogers. 
Potentilla verna, L. Grassington, Mid-West Yorks, v.-c. 64, 
May 17, 1909. This plant grows in abundance on limestone rocks 
(alt. 570 ft.) on the banks of the Wharfe near Grassington. It was 
first recorded for this district by the Contributor, May 15, 1902. — 
John Cryer. A somewhat intermediate plant. Specimens still 
nearer Crantzii, which I gathered at Grassington, were suggested by 
Dr. Domin to be alpestris x ver?ia, while the monographer of the 
genus, Herr. Th. Wolf says “Me judice est forma (foliolis brevi- 
dentatis) Rot. alpestris, Hall., f. (an forsan P. alpestris x verna 
I have it in cultivation. — G. C. Druce. Rightly named. — E. F. 
Linton and J. W. White. Seems correct, but looks different from 
the Bristol limestone plant I have gathered. — A. Bennett. Yes. 
Not P. Crantzii ; which also flowers much later, in Yorks. — K. S. 
Marshall. I should say P. alpestris, Haller fil. [rubens, Vill.). — 
C. E. Salmon. I believe this to be P. Crantzii, Beck ( = 1 ^. 
alpestris. Hall. f.). The terminal tooth of the leaflets is not smaller 
than the others, as in P. verna, and, so far as can be seen from the 
specimens, the stipules of the radical leaves are ovate and not linear. 
Moreover, the flowers are too few and too large, with too long pe- 
duncles, for P. verna. dfliis is no doubt smaller and somewhat 
different from the usual form of P. Crantzii as seen in Britain, 
but Swiss examples are sometimes still smaller, and there is a 
similar form to this in ‘ Herb. Mus. Brit.,’ labelled — “ Little 
Craigindal, S. Aberdeen, E. S. Marshall, July, 1886.” With re- 
