316 THE MARINE BOTANIST. 



drical, six to twelve inches in length, tubular, 

 filiform, reticulated, pellucid, of a very pale green 

 colour, membranaceous (rigid when dry), much 

 branched, branches attenuated." 



E. erecta. Grows on rocks in the sea, about 

 half-tide level. Annual. Spring and summer. 

 Not uncommon. ^' Frond cylindrical, four to eight 

 inches high, filiform, slender, highly reticulated, 

 branches erect, opposite or alternate, set with capil- 

 lary ramuli, all attenuated to a fine point." A very 

 variable plant, not always easy to distinguish from 

 the next species* 



E, clathrata. Grows between tide-marks. An- 

 nual. Spring and summer. Not uncommon. 

 Brighton. Torquay. Falmouth. Belfast Bay. 

 Appin, Argyleshire. Frond four to twelve inches 

 high, cyHndrical, filiform, slender, highly reticu- 

 lated ; branches spreading, much divided, set with 

 divaricated or recurved ramidi." 



j&. ramulosa. Grows on rocks between tide- 

 marks. Annual. Spring. Not uncommon. Fronds 

 five or six inches to one or two feet long, com- 



