REPORT FOR 1910. 
555 
supply. — H. J. Riddelsdell. A still dwarfer specimen from the 
limestone of the Gower peninsula, found by me in company with 
Messrs. Riddelsdell and Shoolbred, has grown in my garden into 
a luxuriant plant, fully a foot across. — Edward S. Marshall. 
Potentilla verna^ L. On calcareous pasture, the Gog Magogs, 
Cambridgeshire, May 19 id. It is very rare nowin Cambridgeshire; 
and only one specimen is sent for comparison with the Yorkshire 
plants. — C. E. Moss. 
Potentilla Crantzii, G. Beck. Grassington at an elevation of 800 
to 1,000 ft. on exposed knolls of the Great Scar limestone, June 18, 
1910, v.-c. 64. I have never found in this district Potentilla verjia, 
L., at a higher elevation than 600 ft. This latter plant appears to 
love the hollows and always flowers in May. I sent a specimen 
of each to Mr. H. W. Pugsley ; and in his acknowledgment of them 
he says, “ I quite agree that the two specimens you send are 
P. verna and P. Crantzii, as you suppose.” — John Cryer. Typical 
and beautifully prepared specimens of the plant of the limestone 
uplands of the Pennines. — C. E. Moss. Yes, rightly named I be- 
lieve. Does P. verna occur at Grassington ? — G. Claridge Druce 
(i.iii. 1911). I sent through the “ Bot. Exch. Club” (‘Rep.’ 1909, 
p. 448) a number of specimens of P. verna from Grassington for 
distribution. Messrs. Pugsley, C. E, Salmon, A. Bennett, E. F. 
Linton and J. W. White agreed to the name. It always flowers 
early in May, whereas P. Crantzii in June at an elevation of 
400 to 500 feet higher than the former ; but both are at Grassington 
and on mountain limestone. P. Crantzii also occurs in Yorkshire 
on the Pennian limestone in abundance. — John Cryer. Turning 
to the ‘Report for 1909,’ it will be seen that under Mr. Cryer’s 
'‘'‘Potentilla verna^ L.,” Mr. Druce says “a somewhat intermediate 
plant suggested by Dr. Domin to be alpestris x verna 
Herr Th. Wolf says ... ‘ est forma . . P. alpestris. Hall., f. (an 
forsan P. alpestris x verna ?) ’ ” : Messrs. Linton and White say 
“ rightly named ” : Mr. Bennett says “ seems correct, but ...” 
Mr. Marshall says “Yes”: Mr. Salmon says P. alpestris, Hall, f., 
and Mr. Pugsley says “ I belicYe this to be P. Crantzii, Beck = 
P. alpestris. Hall, f.,” and gives reasons for his decision. The 
balance of evidence indicates that the plant sent in 1909 by 
Mr. Cryer was not typical P. verna, although he has since sup- 
plied true P. vertia from Grassington. — C. E. Moss. 
Alchemilla vulgaris, Linn., var. alpestris, Pohl. [ref. No. 45]. 
Hopetown, Linlithgow, v.-c. 84, May 29, 1910. Not, I think, 
recorded from this county before ; it seems to be locally abundant. 
There also seems to be a form fairly intermediate between pratensis, 
Pohl., and var. alpestris, Pohl., but of which I have unfortunately no 
