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166 SHORT DESCRIPTIVE NOTES ON THREE RIJBI.
cherrimus, R. anr/losaxonicus, and R. viridis. For fully detailed
descriptions I must refer my readers to—F. W. C. Aresclioug,
'Some Observations on the Genus Rnhus' (Lund, 1885-86);
Friderichsen and Gelert, ' Danmarks og Slesvigs Paibi,' in Bot.
Tidsskr. (pp. 46, 65), tom. 16 (1887); Focke, ' Synops. Eubor.
Germ.,' pp. 868, 369 (R. viridis and incuUus).
RuBus puLCHERRiMus Neuman (1882). it. jwlyanthemos Lindeb.
(non polyanthus P. J. Muell.). R. Neumani Focke. — Hooker's
name R. jmJcherrimus, being a synonym of R. lineatus Eeinw., must
be dropped, and therefore the plant can bear the name given by
Neuman.
The Swedish authors assert that in their country this bramble
keeps quite distinct from 7?. Lindehergii P. J. Muell. Either species
agrees exactly with forms placed under R. umhrosus by English
botanists. R. pulcherrimus bears more or less numerous (often a
few scattered only) glandular setfe on the panicle ; its prickles are
of a moderate size ; and in a living state it will be distinguished
from the true umhrosus at first sight by its pink flowers. The two
species or varieties agree in the roundish shape and the small
superficial dentition of the leaflets. A careful examination of the
living plant will show if it can be separated from the eglandular
white-flowering %imhrosus.
E. ANGLosAxoNicus Gelert. — By many characters this species
seems to be intermediate between R. mucronatus and R. Radula.
Usually the stem bears a good many aciculi, which are often
somewhat unequal in size, but always very distinct from the strong
prickles confined to the angles. The leaves are ternate or pedatoquinate,
the leaflets coarsely serrate and generally white-felted
beneath, the terminal one ovate or elliptic, with a short point.
After flowering, the sepals are patent. The inflorescence is very
glandular.
The stems of R. Radula are much rougher, from numerous equal
aciculi ; its leaflets are narrow and acuminate ; and its sepals are
usually reflexed. R. vnicronatus will be easily distinguished by the
shape and serrature of its leaflets.
E. VIRIDIS Kaltenb. (1845). — This species recalls typical R.
jmllidus W. et N., but it may be easily distinguished by its unequal
prickles. The true R. paUidus, sl rare plant in England, belongs to
the radida group, and bears nearly equal prickles well discriminated
from the aciculi. //. viridis might, I think, be put by Professor
Babington under his R. lucJderi var. pr(?/a/Ms; and indeed it is
difficult to trace certain limits between R. Ka:hleri and R. viridis,
although the typical forms look very different. I consider the
R. incuHus Muell. et Wirtg. (1862) to be a more hairy and very
prickly variety of R. viridis, and it is, I believe, much more frequent
than the typical plant as well in England as in Western Germany.
R. viridis and its allied forms are connecting links between the
Radula and the Glandulosi.