244 BRITISH SEA- WEEDS. [^Rltoclosjoermea. 



water. Bieimial. January to July. Trequent iu Scotland, 

 England, and Ireland. It is not common, however, on the 

 coast of Ayrshire about Saltcoats and Ardrossan. It is 

 frequent and very fine at Southend, Kintyre, at Dunaverty 

 and Macrihanish Bay. The most beautiful specimens I 

 have seen of it were gathered in the island of Mull by hei 

 Grace the Duchess of Argyll and Lady Emma Campbell, 

 and not thought less lovely because prepared by persons 

 whose great worth and numerous accomplishments give 

 additional dignity to their high rank and station. 



Its substance, being thick, is very different from R. bi- 

 fida, When got among rejectamenta, and partly decora- 

 posed, the specimen is spotted with white, which has not a 

 bad effect. See a fine figure of it, natural size, and magni- 

 fied figures of both kinds of fruit, in PL cxxi. of Phyc. Brit. 



3. Khodymexia Palmetta, Greville. 



Hab. On rocks, and on Laminarice. Annual. Summer 

 and autumn. Kot uncommon on the British shores. Rare 

 in the west of Scotland. Pound by Mrs. Gibb at Saltcoats,- 

 and by D. L. near the lighthouse, Pladda, off" Arran. 



Substance rigid, and imperfectly adhering to paper ; 

 colour a fine pinky-red, retained in drying. Por excellent 

 descriptions and figures, see Alg. Brit., PL xii., and Phyc. 

 Brit., PL cxxxiv. 



