272 THE MARINE BOTANIST. 



Orkney Islands. Aberdeen. Densely tufted, one 

 to five inches in height, slender, and flaccid ; every 

 joint produces a pair of opposite and simple awl- 

 shaped minute spreading ramuli* 



C, TurnerL Parasitical on several marine algae. 

 Grows in tufts of an inch to an inch and a half in 

 height^ simple or slightly branched, pinnated, with 

 opposite spreading simple ramuli. 



(7. harhatum. Grows on mud-covered rocks 

 within tide-marks. Very rare. Dredged at Wey- 

 mouth. Quay, at Penzance. Ilfracombe. Fila- 

 ments densely tufted, one to two inches high; 

 branches simple or pinnulated for half their length, 

 with minute opposite ramuli. Tetraspores elliptic- 

 oblong. 



C. phima. Grows on other algae, usually on 

 the stems of Laminar ia digitata. Bare. Bantry 

 Bay. Malbay, west of Ireland. Appin, Argyle- 

 shire. From a quarter to half an inch in height ; 

 branches usually alternate, naked below, the upper 

 half pinnated, with short erect close-set opposite 

 ramuli. Tetraspores globose. 



