1 1 SYNOPSIS OF BRITISH SEAWEEDS. 



like liases of its branches, n character at all times obi 

 Like its congeners it is exceedingly bushy, forming a Bub- 

 marine shrub whose branches are closely crowded together 



on the sli<>rt. thick stem, and spread in all direction in b 

 dense head. C. granulata is of frequent occurrence on the 

 shores of England and Ireland, but appears to be rare in 

 Scotland. It generally grows in a very scattered man- 

 ner, but is sometimes gregarious. Its copiously branched 

 stems afford a grateful resting-place to a host of marine 

 animals, sponges, etc.. and are often completely clothed with 

 a thick incrustation of animal life. However annoying this 

 may be to the collector of specimens, who can rarely, if ever, 

 find a clean-stemmed Cyhtoseira, it must be admitted that 

 these parasites add much to the picturesque beauty of a 

 Cystoseira-groxe, their brilliant colours and starry forms 

 looking like clusters of flowers peeping out from the 

 branches. When seen, under a favourable light, in a clear 

 tide-basin, the effect is highly beautiful. 



G. barbata (The bearded Cystoseira) ; stem cylindrical, covered 

 with small, elliptical knobs, each of which bears a very 

 slender, many times dichotoino-pinnated, filiform branch ; 

 air-vessels lanceolate, one or two together ; receptacles small, 

 elliptic-oblong, mucronate, Ag. Sp. Alg. v. 1. p. 57. (Atlas, 

 PI. II. Fig. 8.) 

 Fucus barbatus, Good, et Woodiv. F. foeniculaceus, Gm. 

 Hah. On rocks between tide-marks. It is said to have been ga- 

 thered by Hudson in Devonshire; but has not been recent h 

 found. 

 The figure here given has been prepared chiefly from a 

 specimen collected at Catania in Sicily, and given me, 

 many years ago, by Professor Gussone. I have seen no 

 British specimen, nor am I aware that any authentic evi- 

 dence is on record of the finding of this plant on the 

 British coast, although it is mentioned as an undoubted 

 native of Devonshire by Hudson, Stackhouse. and other 

 early writers on these plants. Turner says, " How far 

 F. barbatus is really entitled to a place in the British 

 Flora I own I entertain much doubt. I never saw a spe- 

 cimen gathered on our shores ; and in Devonshire, where 

 Hudson is stated to have gathered it, I have been fortunate 

 enough to enjoy the advantage of correspondents, who 

 would have been little likely to have left it unnoticed." 

 This was written upwards of thirty years ago, since which 



