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 alone having its disk furnished with fibres which often 

 creep. 



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. Mil- 

 town Malbay, Mr. Harvey. ©. Fructification, Summer. — A most varia- 

 ble 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. Grif- 

 fiths and Mr. Harvey. Mrs. Griffiths has the merit, Dr. Greville ob- 

 serves, of clearly ascertaining the distinctness of this species, by point- 

 ing 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<--F ■ 

 em palmatu$ % Linn. — Light/. Scot, r. 2. /. i'7. 'lam. Si,n. 

 His/. Fuc. t. 115. /■:. Bot t \:uuK—rir„ palmate^ lyngb. 

 — 3. Saiiin Hsis j frond thinner laeiniated the segments vewy 

 narrow. — (inc. I. r. — Fucut Samiensis, Mat. in Roth, Cat. 



Bot. r. II. p. [03, p. 1. Vara. 11, st. FUC. t. \\. 



Abundant <m all the rockj shores of Great Britain. ■>■ J< r-ev.— 0. 



or $ . Winter.— Tour to six inches or a foot high, of 8 livid purplish 



