THE MARINE BOTANIST. 273 



Section 2.— Fruticosa. Ramuli alternate. Main 

 stems robust, opaque, or nearly so. 



C. Arhuscula. Grows on exposed rocks, and on 

 stones and shells between tide-marks. Perennial. 

 Common on the northern and western shores of 

 Scotland and Ireland. Very rare. On the eastern 

 shores of Scotland. Frith of Forth. Aberdeen. Not 

 known on the English shores. From three to eight 

 inches high; destitute of branches in the lower part 

 of the stem ; main branches set with shorter ones, 

 which are densely clothed with finely divided 

 ramuh. Colour a dark or brownish vinous red 

 colour. 



C BrodicsL Grows on other marine algse. Rare. 

 Forres, coast of Northumberland. Torquay. 

 Mouse-hole, near Penzance. Miltown Malbay, 

 west of Ireland. Annual. Spring. From one to 

 three inches high ; set throughout the whole length 

 of the stem with long, simple, quadrifarious 

 branches, the lower ones being the longest, the 

 higher becoming gradually shorter 5 pinnules erecto- 

 patent. Colour a brownish red. 



