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338 RUBUS DUMNONIENSIS.
E.
M.
P.
ft. Ralfs.
S. teliferum Ealfs, E.
S. Bn'hUsonii Archer.
8. punctidatuni Breb.
'8. alternans Breb. E.
8. dispar Breb. E.
8. dilatatum Breb. E
8. tricorne Breb.
E.
E.-
S. margarltaceum Ebr. E.
8. injiexum Breb. E. W.
8. iwlymorphum Breb. E.
8. (jracile Ralfs. M. P.
8. paradoxum Meyen. E.
8. tetracerum Kg. E. W.
Pediastrum Tetras Ebr. E.
P. Heptactis Ebr. E. H.
P. Boryanum Turp. E. H.
P. Napoleonis Turp. E. H.
8taurogenia rectangularis Br. E.
CcelastrumsphcBricu)n^Sig. E. H.
C. cubicum Nag. E.
8on(strum spinulosum Nag. E.
Characium longipes Eabenh. E.
Dlctyospharium Ehrenbergianum
Nag. E.
Nephrocytium Nagellii Grun. E.
N. Agardhianum Nag. E.
Ophiocytium parvulum Perty.
H.
E.
Honnospora mutabilis Breb. E.
Pleurococciis vulgaris Men. E.
Chlorococcum gigas Kg. E.
Gloeocystis ampla Kg. E.
8chizochlamys gelatinosa Br. E.
Botryococcus Braimii Kg. E.
Palmodactylon simplex Nag. E.
Raphidium aciculare Br. E.
R.falcntum Corda. E. H.
R. biplex Reinsch. E.
8cenedesmus obtusus Mey. E.
8. acutus Mey. E. H.
8. antennatus Breb. E.
8. quadricauda Turp. E. H.
H. 8elenastnim Bibraianum Reinsch.
E,
Poli/edriurn tetraedricum Nag.
H.
E.
Glochiococcus hirtus Reinsch. E.
Tetrapedia Reinschiana Archer. W.
8pindina tenuissima Kg. E.
Chroococcus coharens Nag. E.
G. turgidus Nag. E.
Glceocapsa quaternata Breb. E.
Merismopedia glauca Nag. E.
Microcystis marginata Kirch. E,
GcelosphcBrium Kutzingianum Nag.
E.
Gomphospliaria aponina Kg. E.
RUBU8 DUMN0NIENSI8.
By Prof. C. C. Babington, F.R.S.
Rubus Dumnoniensis, n. sp. — Stem more or less arcuate,
angular, furrowed ; prickles long, slender, patent from a short compressed
base on the angles ; leaves 5-nate-palmate ; leaflets coriaceous,
flat, not wavy at the edge, finely and doubly serrate, with a
close coat of grey-white felt and hairy beneatli, all stalked ; terminal
leaflet obovatc, subcuspidate, rounded and nearly entire at the base
panicle nearly cylindrical, leafy below, with short, few-flowered, subcorymbose,
ascending branches, its rachis and peduncles hairy,
scarcely felted, with many short sunken set;B, its priekles patent,
sepals triangular-ovate-cuspidate, hairy, felted, not
many, slender ;
aciculate, refiexed ; stamens exceeding the styles ; petals pure ivhite,
large, oval.
it'. Dumnoniensis Bab. MS.
FL rotundatus? Focke ! in Journ. Bot. 1890, 129.
Stem often dark parplo, tho prickles yellowish towards their
point. Leaflets broadest above their middle. Lower branches of