190 EPPING FOREST RUBI.
form of radula, is now referred by Mr. Rogers with some hesitation
to R. echinatus, Lindl. He says : "Under R. echinatus, Lindl., I
think. A remarkable and very beautiful variety," In this case the
name radula will have to be omitted. It illustrates the extreme dif-
ficulty of classifying some of the forms of this most perplexing genus
to note that this not uncommon bramble has been variously named
radula, rosaceus and echinatus. It may ultimately require a name to
itself. Another bramble, one of the largest and most showy I have
yet collected, is in a similar case. Mr. Moyle Rogers says of it:
"This handsome plant seems just intermediate between R. echinatus,
Lindl., and R. rosaceus, W. & N., but with mature stems very dif-
ferent from both." (Watson Club Report).
Another bramble found about Walthamstow has been named
R. emersistylus, P. J. Mull, by Prof. Babington, who has also referred
one of the commonest forms under hirtus to R. saxicolus, P. J. Mull
Another form of the same group he is disposed to place under R.
kaltenbachii. I think we have two of the three varieties of R. coryli-
folius, but will await the confirmation of the authorities before
recording them.
It will be seen that there is work yet to be done among the Rubi
of the forest, and that the list, though growing, is not complete.
The following are the additions :—
R. rhombifolius, Weihe,
R. pyramidalis, Kalt.
R. amplificatus, Lees.
R. sprengelii, Weihe.
R. plinthostylus, Genev.
R, emersistylus, Lees.
R. saxicolus, P. J. Mull.
The following two species, given in my former list, should be
omitted.
R. radula, Weihe., and R. sertiflorus, P. J, Mull.,