456 THE BOTANICAL EXCHANGE CLUB OF THE BRITISH ISLES. 
Pyrus Aria, Ehrh., forma. Cheddar, Somerset, v.-c. 6, June 
28, 1909. I believe this to be equivalent with plants sent to Prof. 
Hedlund in 1908, and pronounced by him to be Sorlnis Aria 
sensu stricto .^' — Augustin Ley. Although Cheddar is in my dis- 
trict of the Bristol coal-fields, I^Ir. Ley knows its critical plants 
far better than I do. I can only say that this gathering seems 
to be another of the numerous variations in leaf-texture and 
outline that occur on our limestone hills. — J. W. White. 
Pyrus Aria, Ehrh., var. iuoisa (Reichb.). Cheddar Gorge, 
Somerset, June 28, 1909. Confirmed by Professor Hedlund. 7 wo 
trees. — Augustin Ley. This at any rate appears to be a variety 
worthy of distinction. I am glad to have some authentic speci- 
mens. — J. W. White. Just this plant was found by me near 
Ewelme in 1882. See ‘Flora Oxford.’ p. 114, but Syme would 
only name it ‘a form of Aria.' — G. C. Druce. 
Pyrus Aria, Ehrh., var. I'upicola, Syme? Great Doward, Here- 
fordshire, July 26, 1909. Mountain rocks, Taren-r-Esgob, Mon- 
mouthshire portion ; July i, 1909. In along and interesting note on 
these plants. Prof. Hedlund pronounces them to differ widely from 
Sorbus Aria in conformation of the pollen, and to stand much nearer 
Sorbus obtusifolia and A. salicifolia. He believes that Syme placed 
them along with S. salicifolia in his var. rupicola of Pyrus Aria, and 
accepts, provisionally, Syme’s name of rupicola for them. S. salici- 
folia has longer, narrower cuneate-based leaves, and may be known 
from the plant in question by the much darker colour of the sepal 
underneath the loose floccum. I have been used to join these two 
plants together as falling under Syme’s var. rupicola, and I believe 
Syme has so named specimens of the plant in (question for me ; but 
he certainly included in his variety the plant named Sorbus salici- 
folia by Hedlund. The difference in the colour of the sepal works 
out true in my herbarium. — Augustin Ley. Later (January, 1910), 
Hedlund writes that further investigation has satisfied him that 
Syme’s P. Aria, var. rupicola, is identical with A. salicifolia, Hedlund, 
and cannot be taken to include the present plant. — A. Ley. 
Pyrus intermedia, Ehrh. Cheddar, Somerset, v.-c. 6, June 28, 
1909. The plant we have been calling inter media, Jihrh., in Britain 
is about to be described by Prof. Hedlund under another name, as 
a sub-species very close to Sorbus Mougeoti, Soy. et Godr. It will 
be better to await his description before saying more about it. 
These specimens have greyer felt than is usual with P. intermedia. 
— Augustin Ley. The authorities for the name are Godron and 
Soyer-^Villemot. It is the Pyrus intermedia, var. Mougeoti of my 
‘List’ — G. C. Druce. 
