The English flora - SeaweedAfrica

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*288 ALGiE INARTICULATE. [Rhodomenia.
Sp. Alg. v. 1. p. 186. Grev. Crypt. Fl. t. 32-2. (excl. tlie figs.
2 and 3.)
Li the sea. Orkney, Rev. C. Clouston. Isle of Bute, Dr. Greville.
Larne, near Belfast, Dr. Drummond. 0. Summer.—" Two to four
inches in length, of a most beautiful rose-pink, which changes to purplish
in drying. This species is clearly distinguished from the two subsequent
ones by the spots of ternate granules being scattered over the
disk of the frond. The figures 2 and 3 in the Cryptogamic Flora
(t. 322) belong to A r . Gmelini, many specimens of which closely resemble
the present in general outline." (Grev.)
5. N. Gmelini, Grev. (marginal-fruited Nitophyllum); stem
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short passing into a frond with a roundish outline deeply cleft
the main segments broadly wedge-shaped vaguely subdivided
faintly marked with vague flexuose veins, the margin entire, spots
of ternate granules irregular marginal. Grev. Alg. Brit. p. 82.
Delesseria Gmelini, Lamour. Fss. p. 36. Fucus laceratus, y.
Turn. Hist. Fuc. v. \. p. 153.
South coast of Devon, Mrs. Griffiths, llfracombe, Miss Hill. Larne,
near' Belfast, Dr. Drummond. 0. Summer.—A beautiful and very dis-
tinct plant, long known to Mrs. Griffiths, who finds it abundantly in
Devonshire. It rarely exceeds 2 or 3 inches in length. In substance
and marginal fructification this approaches the following species; in the
general outline and comparative breadth of the frond it approaches the
preceding ones. Dr. Greville observes that the Irish specimens, which
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I have not seen, are twice the size of English ones.
6. N. lacerdtwn, Grev. (lacerated Nitophyllum); frond membranaceous
very tender plane veiny mostly diehotomous, segments
sublinear thin apices rounded, the margins lacinulated
waved and bearing the oblong spots of granules. Grev. Alg.
Brit. p. 83 Delesseria lacerata, Ag. Sp. Alg. v. 1. p. 184.
Fucus laceratus, Gmel.— Turn. Syn. Fuc. p. 154, Hist. Fuc.
t. 68. E.Bot. L 1067. Fucus crispatus, Huds F. endivifolius,
Light/. Scot. p. 948. t. 32.—/3. uncinata; fronds narrow, lesser
segments minute. Turn.
Common on the coasts of Great Britain.— ,3. Yarmouth, Mr. Turner.
0.—A very well marked, yet a variable plant in size and in the relative
breadth of its frond and the more or less copious segments and lacinulse.
Dr. Greville well observes that " the whole frond has the power of attaching
itself by the edges and creeping, as it were, upon the rocks and
plants in its way; so much so, that it can hardly be gathered without
some resistance and laceration."
26. Rhodomenia. Grev. Rhodomenia.
Frond plane, membranaceous, fine pink or red, quite veinless,
sessile, or with a short stem which expands immediately into
the frond. Fructification:— 1. hemispherical, scattered capsules;
2. minute, ternate granules, spreading over the whole or some
part of the frond (not in defined spots). Grev. Alg. Brit. p. 84.
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