80 ROSA TOMENTOSA. 
that crumpled petals have their margin. more or less 
crenated. Plants of R. hibernica in Mr. Lyell’s garden 
~ crenate petals one season and emarginate ones the 
nex 
vain resinosa is a very interesting plant, and may 
be considered as the same sort of offspring of tomentosa 
as Rau’s actphylla is of canina. Wild specimens are 
smaller in all their parts, with very compact foliage, 
narrow hoary leaves, and bright red flowers. I have, 
however, an intermediate specimen from the same part 
of Ireland, and in Mr. Lyell’s garden the cultivated 
ou is becoming more robust every year and less hoary. 
t was found in the south of Ireland by Mr. Drummond, 
curator of the Botanic garden at Cork, and kindly 
communicated by Mr. Hooker. 
So closely do tomentosa and canina border on each 
other, that, as satisfactory marks of difference, "T have 
only to propose the straight prickles, diverging ser- 
ratures, hispid fruit, sepals and peduncle and soft 
leaves of the former, as contrasted with the hooked 
prickles, converging serratures, smooth calyx, decidu- 
ous sepals, and naked or harshly pubescent leaves of 
the latter. R. tomentosa has usually the sepals erect 
during flowering, but I have specimens from Cha- 
mouni, gathered by Mr. Hooker, with reflexed ones. 
