268 BRITISH SEA- WEEDS. [Rkoclosjiermea. 



appearance, the exquisite beauty of which those alone can 

 appreciate who have had the opportunity of observing it 

 recent, as whatever care may have been employed in the 

 preservation of it, it is, nevertheless, in that state far in- 

 ferior to what it was before it was dried." ]\Ir. D. Turner's 

 PI. CI. is good, but in this faded state. I have, however, 

 dried specimens of it whose colour is almost equal in splen- 

 dour to the remarkably fine and correct figure given in 

 ' Phycologia Britanuica/ PL Li. The colour is a fine pel- 

 lucid crimson. 



Genus LXXV. LAUEENCIA, Lamonr. 



Gen. Char. Frond cylindrical, filiform, between cartilaginous 

 and gelatinous, mostly yellowish or purplish red. Fructification 

 of two kinds : 1, ovate capsules, with a terminal pore, containing 

 a cluster of stalked pear-shaped seeds, fixed by their base ; 2, 

 ternate granules, imbedded in the ramuli. — GreviUe. 



1. Laurencia piNNATiFiDA, Zaw6>wr. (Plate XV. fig. 58, 

 a portion of the frond, natural size.) 



Hab. Rocks in sea. Aimual. June to September. 



This is one of the most common, and at the same time 

 one of the most variable of our Alga?. It is found at high 

 and low- water mark, and in deep water, its size and colour 



