11 
within the county of Berks. New to the sub-province of West- 
Thames.” — H. C. Watson. 
Pyrus scandica, Bab. Mr. T. B. Archer Briggs contributes a large 
supply of specimens from the neighbourhood of Plymouth. These, 
like the other Devonshire specimens I have seen, resemble the Sorbus 
Mougeoti , Soyer and Gand., having the leaves less deeply lobed at the 
base than at the middle ; but they differ from authentic Continental 
specimens, in having the leaves firmer, more glossy above, and with 
the lowest lobes more acute and more spreading. In the leaves, in- 
deed, the Devonshire specimens show an approximation towards S. 
latifolia, Pers. 
Pyrus fennica, Bab. Under this name Mr. A. Craig Christie has 
sent for distribution specimens from the Isle of Arran. These are 
precisely identical with the genuine Scandinavian form of S. scandica. 
Do both P. scandica and P. fennica grow wild in Arran, or are the 
AiTan specimens which have leaves with the lower pinnae separate 
P. scandica , var. pinnatifida, of Fries ? In the second edition of the 
Nov. FI. Suec. p. 139, Fries mentions this variety, and refers to it the 
P. pinnatifida of Smith, and says it is to be carefully distinguished 
from Sorbus hybrida [P. fennica). The plant referred to by me as P. 
semi-pinnata , Both, in the third edition of ‘ English Botany ’ is the true 
Sorbus liybrida , L. fib, and the S. fennica , Fries, as proved by Norwegian 
specimens collected by the late Professor Blytt, received by me since 
the third volume of the book mentioned was written. After seeing these 
specimens I have no doubt that the plant I described as P. fennica is 
really P. scandica, var, pinnatifida. Fries says of it, in the ‘ Summa 
Vegetabilium Scandinaviae ’ (p. 170), that it is everywhere confounded 
with S. fennica, but certainly truly distinct by the fruit; for the fruits 
of S. fennica are acid, and in appearance very similar to those of S. 
aucuparia. 
Hieracium sp. Mr. J. Ward sends cultivated specimens of a Hiera- 
cium from Orme’s Head, which are probably a very abnormal form of 
II. pallidum. They have the petioles much longer and the leaves nar- 
rower and more attenuated at each end than in any specimens of H. 
pallidum which I have seen, but in other respects they resemble that 
species, which is very variable in its foliage. 
Centaurea nigra, L. var. “ In the Isle of Wight specimens of C. 
nigra, L., now before me, there appear to be four states or varieties 
