260 THE MARINE BOTANIST. 



spores minute; whorled round the joint near the tips 

 of the branches ; favellse, roundish on the sides of 

 the ramuU. Substance tender and gelatinous. The 

 filaments are repeatedly and regularly forked with 

 wide-spreading axils* Brighton* Weymouth. The 

 Channel Islands. Falmouth Harbour, plentiful, 

 I. 6. Hartly, Northumberland. Dublin Bay. 

 Portrush. Cork Harbour. Belfast Lough. 



GRIFFITHSIA SETACEA--BKISTLE-LIKE 

 GRIFFITHSIA. 



From three to six inches high^ filaments finer 

 and with much smaller joints than in G. corallina. 

 Slender, irregularly forked, with acute axils. Ra- 

 ther rigid, of a beautiful crimson when recent, but 

 immediately on its being immersed in fresh water, 

 the membrane bursts with a cracking noise, and 

 the colouring is lost; like several others of the 

 genus, it stains paper of a bright carmine, which 

 will remain unaltered for years. Tetraspores borne 

 on involucre-like ramidi, Favellce also attached to 



