THE MARINE BOTANIST. 299 



Bay. Lame. Ardrossan and Saltcoats, Ayrshire. 

 Tor Abbey and Salcombe, south coast of Devon. 

 Falmouth Bay. 



Colour deep glaucous green, ^^ with changeable 

 tints when fresh, and under water appearing almost 

 white" (Miss Hutchins). ^^ Closely allied to C. 

 diflfusa 'y but the filaments are of greater diameter, 

 the ramuK more abundant and shorter, and they 

 are also shorter and generally contracted at the 

 dissepiments." 



C. diffusa. Grows on rocks, &c. Not uncom- 

 mon. Sidmouth. Torbay. Falmouth. Near 

 Swansea. Aberfraw. Malbay. West of Ireland. 

 Port Rush. ^^ Filaments six to ten inches long, 

 as thick as horse-hair ; loosely tufted, generally so 

 rigid as to bristle out when removed from the 

 water, but occasionally flaccid, very flexuous, dis- 

 tinctly branched, branches alternate, usually fur- 

 nished near the top with a few patent secund 

 ramuli. Colour either grass green or dark green. 



C. nuda. Grows on basalt rocks in the sea. 

 Port Stewart. Filaments tufted two to three inches 



