246 THE MARINE BOTANIST. 



rocks, in tide-pools. Annual. August. Torquay, 

 on the Harbrick. 



CERAMIUM DESLONGCHAMPII.— DES- 

 LONGCHAMFS CERAMIUM. 



Tufted, from three to four inches high, much 

 branched, more or less forked throughout ; tips of 

 the ramuli spreading. Dissepiments dark purple ; 

 articulations transparent -, in the main stems about 

 thrice as long as broad, much shorter in the ramuli. 

 The colour of this species to the naked eye is a very 

 dark purple, and the articulations are scarcely visible 

 excepting in the stems. " Favellse without any in- 

 volucral ramuli, very irregular in form and size ; 

 tetraspores large and very prominent, seated in 

 the joints, often of the same plant which bears 

 [favellceJ " — Harv. Grows on other algae between 

 tide-marks. Perennial. Not uncommon in many 

 places. Pier, Torquay. Blue Anchor, Minehead, and 

 Bossington, Somerset, frequent 5 I. G. Ulverstone, 

 Lancashire, Miss E. Hodgson. Swansea. Belfast 



