214 BKiTiSH SEA-WEEDS. {lllioclospermea. 



Mr. D. Turner. It lias since been found by Mrs. Griffiths 

 and Mr. Borrer, and recently by Mrs. Gulson in great 

 abundance at Exmoutli; by Miss Hittchins, Professor Har- 

 vey, and Mr. "W. Thompson, in Ireland. It has been found 

 for the first time in Scotland by D. L., jun., Macrihanish 

 Bay, Argylcshire.^ 



Genus XLIX. CEUORIA, Fries. 



Gen. Char. Frond gelatinoso-coriaceous, forming a skin on 

 the surface of rocks, composed of vertical, tufted, simple, jointed 

 filaments, set in a gelatinous matrix ; one of the joints of each 

 filament greater than the rest. Fructification, tetraspores lying 

 at the base of the filaments. — The name is from the Latin word 

 for blood or (jore, because the plant looks like a blood-stain on 

 the rocks. — Harvey. 



*• " There are few naturalists, indeed," says Mr. Dawson Turner, "to 

 whom the marine botany of England is under greater obligations than to my 

 friend and original instructor in this department of science, Mr. Lilly ^Vigg. 

 As a proof of which it will be sufficient to mention that six of the plants 

 already mentioned in this work [' Ilistoria Fucorimi '] were first brought to 

 light by his industry and acuteness of observation. It was he who first dis- 

 covered the subject of the present plate, which I had a particular pleasure in 

 describing under his name. It is an elegant species, botii as to form and 

 colour, and of remarkably uufrequent occurrence. For many years only 

 three specimens, and those gathered at distant intervals, were known to 

 exist."— TrRNEu's ' Ilistoria Fucorum,' page 84. 



