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206 KUBUS ERYTIIRINUS.
There are few charcacters by which to separate it from R.
rhamnifolius W. & N., Anglor,, but it has a markedly different appearance
from the ordinary form of that bramble, partly by reason
of the leaflets having dentate or irregularly dentate- serrate, not
finely cut and very regular, divisions. It is also unlike it in
having pink or tinted petals, and in the leaves being less frequently
felted.
I quote Dr. Focke as the authority for considering the plant
about which I am writing as essentially the R. eri/thrinus of
Genevier ; yet a reference to the work of the latter, ' Essai Monographique
sur les Rubus du Bassin de la Loire ' (I have only ed. 1,
1869, to which to refer), will show some want of agreement between
my description of the Plymouth plant and his of R. erythriniis, and
the pomts of dissimilarity would have made me hesitate to combine
the two on my own responsibility.
This bramble is extremely abundant, and grows with great
luxuriance, in many parts of Cornwall and Devon, evidently finding
in these south-western counties conditions well suited to its
requirements. Apart from the neighbourhood of Plymouth I have,
in Cornwall, seen it in plenty near Bodmin, in the parishes of
Blisland, St. Tudy, St. Mabyn, and Cardinham ; also in abundance
in the neighbourhood of Launceston.
In South Devon.—At Buckfastleigh and Diptford, Newton Abbot,
Cockington, Kingskerswell, near Chagford, Gidleigh, Throwleigh,
Haldon and elsewhere near Exeter.
X. Devon.—Okehampton. Specimens collected by Mr. W. P.
Hiern, from the parishes of North Molton, N. Tawton, Symbridge,
and Bishop's Nympton.
S. Somerset.—Blackdown, below the Wellington Monument
collected in company with the Rev. R. P. Murray in 1883.
Dorset.—Arne. Found in considerable quantity by the Eev. W.
Moyle Rogers and myself in 1886, In the following year I saw it
also, but in small quantity, at Branksome Chine.
S. Hants.—Met with by the Rev. W. Moyle Rogers in good quantity
by Lyndhurst Road Station, whence I have seen a specimen.
Gloucester.—Mr. Jas. W. White, in his ' Flora of the Bristol
Coal Field,' says:— "We have gathered by the river side under
Cook's Folly the bramble mentioned by Mr. Briggs, under R. Lindleianus,
in the ' Flora of Plymouth,' as very common about Plymouth,
and probably an undescribed species " (p. 58). I have seen a
specimen from this station.
Suffolk-.—Polstead Marsh. Specimen collected Sept. 12th, 1889,
by the Rev. E. F, Linton; seen thence.
IJ errford.— F^aton Park Wood, Sep. 25th, 1888. Specimen in
the collection of the Rev. Augustin Ley.