278 THE MARINE BOTANIST. 



mark. Rare. Pier, Torquay. Plymouth. Falmouth. 

 Whitsand Bay^ near the Land'sEnd. Ilfracombe. 

 Swansea. Yarmouth. Portaferry, near Belfast. 

 Wicklow. Roundstone Bay, Galway. From one 

 to two inches high. Plumules twice-pinnate 

 patent, narrow linear-oblong in outline. Colour a 

 fine rose-red. 



Section 4. — Corymbosa. Stems articulated ; 

 ramuli dichotomous. 



(7. corymhosum. See description. 



C. .spongiosum. Grows on rocks in the sea^, 

 generally such as are perpendicular, and on other 

 algae. South of England, and coasts of Ireland 

 and Scotland. Torquay. Salcombe, Plymouth. Land's 

 End. Ilfracombe. Jersey. Kingstown harbour and 

 Killiney. Dunleary. Lame. Saltcoats. Largo. 

 Kilbride, Ayrshire. Fyfe. 



'^ Fronds two to four inches high, flaccid, soft, 

 holding water like a sponge ; stems shrubby ; 

 branches long, spreading in every direction, thickly 

 clothed with short secondary branchlets about half 



