260 ENGLISH BOTANY. 
EXCLUDED SPECIES. 
SANGUISORBA MEDIA. Linn. 
Said to have been found by Mr. George Don in the West of 
Scotland ; but doubtless erroneously, as it is an American plant 
not occurring at all in Europe. 
AREMONIA AGRIMONOIDES. D.C. 
A plant of South-eastern Europe, found by Mr. John Sim in 
woods at Scone, and in several parts of Perthshire; an escape 
from gardens, and, not having been noticed before 1856, no doubt 
avery recent one; so that it can scarcely yet claim a place amongst 
naturalized plants. 
POTENTILLA ALBA. Linn. 
E. B. No. 1384. 
Said to have been found in Wales; but this has not been verified 
by recent observation. Probably P. Fragariastrum was mistaken 
for it. 
POTENTILLA INTERMEDIA. Nes. 
P. opaca, Sm. E. B. No. 2449. 
Said to have been found by Mr. G. Don on the hills of Clova 
and braes of Balquidder, and seashore opposite Dundee, but not 
found by any other botanist, and his authority alone is not sufficient 
to establish its occurrence. 
POTENTILLA TRIDENTATA. Sm. 
E. B. No. 2389. 
Said to have been found by Mr. G. Don on Werron Hill and 
East Rocks Loch, Brandy Clova; but no doubt Sibbaldia procum- 
bens has been mistaken for this American plant. 
RUBUS ARTICUS. Zin. 
E. B. No. 1585. 
Said to have been found on Ben-More, in the Isle of Mull, and 
on Ben-y-Gloe, Perthshire ; but recent search has failed to discover. 
it. Mr. Watson had a specimen sent him which was said to have 
been gathered on a moor in Yorkshire, but he had reason to believe 
that the specimen was of garden origin. It appeared in the garden 
