THE MARINE BOTANIST. 297 



C. repens. Thrown on shore after a gale. Jer- 

 sey. Very rare. Miss Turner. Annual ? Summer. 

 " Tufts an inch or two in diameter, and about half 

 an inch thick ; composed of slender filaments densely 

 matted together. The habit is very similar to C. 

 Brownii, but the articulations are of much greater 

 length, and difierent in form." 



(7. pellucida. Grows on rocks near low water- 

 mark. South of England. Yarmouth. Falmouth 

 and Mount's Bay, Cornwall. Several places in 

 Ireland. Very fine in Belfast Lough. Filaments 

 four to six inches high; ^igid, erect, forked, and 

 furnished with tufted ramuli. Articulations many 

 times longer than broad. Colour a fine glossy 

 green, which fades in drying. It adheres but im- 

 perfectly to paper. 



(7. rectangidaris. Thrown up from deep water. 

 Very rare. Summer. Torquay. Dredged in 

 Eoundstone Bay. Cunnemara, in four to six 

 fathoms water, very abundant. Isle of Great 

 Arran, in Galway Bay. Filaments as thick as 

 horse-hair; eight to twelve inches long; rigid, 



