Rhodora 
JOURNAL OF 
THE NEW ENGLAND BOTANICAL CLUB 
Vol. 2 October, 1900 No. 22 
RUBUS IDAEUS AND ITS VARIETY ANOMALUS IN 
AMERICA. 
M. L. FERNALD. 
(Plate 20.) 
EARLY in June a very remarkable Rubus was found by Mr. W. W. 
Eggleston in the crevices of limestone ledges at Cavendish, Vermont. 
The shrub, which is distinctly of the raspberry type, is characterized 
by its small roundish simple or rarely trifoliolate leaves, and at Cav- 
endish it is associated on the ledges with another very local plant, 
Arenaria macrophylla, Hook. A careful study of the American rasp- 
berries shows Mr. Eggleston's plant to be referable to none of our 
described forms, but it is found, on the other hand, to be essentially 
identical with a very rare and much discussed Rubus of northern 
Europe, A. iZaeus, L., var. anomalus, Arrhenius (A. Leesii, Babing- 
ton). 
'This round-leaved raspberry is known in Europe from only a few 
limited stations in Scandinavia, Great Britain, Germany and Holland. 
Its discovery among the Green Mountains, then, is interesting as 
adding still another plant of northern Europe to our apparently 
indigenous flora. But its occurrence in America is noteworthy not 
merely from its geographic interest. The discovery of the plant at 
new stations in Europe has generally been the signal for a fresh dis- 
cussion of its relationships, and these discussions have shown the 
variety anomalus to be phylogenetically one of the most significant 
members of the genus. 
For several years the botanical journals of northern Europe con- 
tained extended articles and notes upon this Rubus, many of them 
offering suggestions as to the origin of the plant. In the English 
Botany, Boswell Syme suggests that *it may be a hybrid form, but 
