The English flora - SeaweedAfrica

—
— —
—
Rhodomenia.) ALGiE INARTICULATE. 291
lanceolate copiously ciliated laciniae, cilia simple patent subulate
bearing the capsules at the extremity, root fibrous creeping
Grev. Alg. Brit. p. 90. Sphcerococcus ciliatus, Ag. Sp Alg.
v. I. p. 263. Lyngb. Hydroph. Dan. t. 4. Delesseria ciliata,
Lamour—Fucus ciliatus, Huds.— Turn. Syn. Fuc. p. 169,
Hist. Fuc. t. 70. Jigs. a—e. E. Bot. t. 1069.
Frequent on the coasts of England, especially in the south. ©.
Fructification in the winter.—This and the following species Dr. Greville
observes to differ from the rest of the Genus in the distinctly fibrous root;
R. Palmetta
creep.
alone having its disk furnished with fibres which often
7 . R. jubdta, Grev. (shaggy Rhodomenia); root fibrous, frond
flaccid between membranaceous and coriaceous linear attenuated
vaguely branched, the branches simple or once or twice pinnati-
fid ciliated, the cilia linear-subulate containing the fructification.
Grev. Alg. Brit. p. 91. Sphcerococcus jubatus, Grev. Crypt. Fl.
t. 359. S. ciliatus, vars. jubatus, linearis, angustus and spinosus,
Ag. Sp. Alg.v. I. p. 264 (according to Grev.).—Fucus jubatus,
Good, and Woodw. in Linn. Trans, v. 3. t. 17. Stackh. Ner.
Brit. t. 11 . Fucus ciliatus, vars. jubatus, lanceolatus, angustus
and spinosus, Turn. Hist. Fuc.t. 70. figs.f.—h. (Greville.)
In the sea ;
attached to rocks and the larger Algas, abundant in Devon
and Cornwall, Mrs. Griffiths. Plymouth, Miss Hill, Mr. Sconce. Miltown
Malbay, Mr. Harvey. ©. Fructification, Summer.—A most variable
plant, especially in the length of its laciniae, which are sometimes 5
or 6 inches in length and cirrhose, as in specimens found by Mrs. Griffiths
and Mr. Harvey. Mrs. Griffiths has the merit, Dr. Greville observes,
of clearly ascertaining the distinctness of this species, by pointing
out the " flaccid substance, so different from the preceding, and
the important fact, that the one is ft summer and the other a winter
plant." The granules, too, in 7?. ciliata, invariably occupy the surface
of th£ frond itself; while in R.jubata thev are placed in the cilia. Still
the opinion of many eminent Botanists is' at variance with this, as may
be seen by the above synonyms: and in regard to substance, I find it to
be by no means constant. Mr. Arnott who has gathered this plant in
Devonshire, bearing fruit on the 6th of May, docs not consider it dis-
tinct from R. ciliata.
8. R. palmdta, Grev. (tan/, ,- intimated Rhodomenia or J)ahc);
frond submembranaceous palmated quite entire at the margin
the segments oblong mostly Bimple, granules collected into
widely irregularly shaped .-pots or clouds scattered o?er the
whole frond.
Grev, Ahj. Brit j>. 93.—Halymenia palmatas
Ag. Sp.Aig. r. 1. j,. 204*—Ddeueria paknata, Lamour