THE MARINE BOTANIST, 301 



mouth. In the sea, not uncommon. Torquay. 

 Falmouthj Miss Warren. Ballycastle, and several 

 places on the east coast of Ireland. ^^ Filaments 

 four to eight inches long, remarkably flexuous, rather 

 harsh to the feel." Dull green, rigid, and shghtly 

 branched. 



(7. gracilis. In deep water, and on rocks and 

 algae. Torquay. Falmouth, Miss Warren. Youghal. 

 Belfast Bay. Ballantrae, Ayrshire. Tufts from six 

 to twelve inches long. ^^ The only species which 

 can be confounded with it are C. flexuosa, than 

 which it is more luxuriant, more glossy, and more 

 branching ; and C. Macallana, which is softer, more 

 flaccid, and much more slender and delicate." 



C. Rudolphiana, Parasitical on Zostera, Lami- 

 narise, and other algae, in two to six fathoms, very 

 abundant in Roundstone Bay, Cunnemara. On 

 Flushing Quay, in Falmouth Harbour, ^^ but only 

 once," Miss Warren. Annual. Summer. " Fila- 

 ments six to twenty inches long, exceedingly slender 

 and soft, forming beautifully silky, bright green, 

 sub-gelatinous tufts. A much more slender plant 



