270 THE MARINE BOTANIST. 



to paper. Not uncommon on algae near low water- 

 mark and on rocks. 



CALLITHAMNION FLORIDULUM.— 

 TUFTED CALLITHAMNION. 



Filaments slender, forked, without ramuli, form- 

 ing dense tufts. Tetraspores on short stalks 

 arranged in a secund manner along the upper 

 branches. Grows on sand-covered rocks, near low 

 water-mark, at all seasons. Perennial? March 

 and April. Abundant on the Galway coast, east of 

 Ireland, on the coasts of Clare and Kerry. Antrim. 

 Orkney. Falmouth, I. G. Land's End. The 

 tufts of this species, washed ashore on the west 

 coast of Ireland, are, we are told, called Jigs by the 

 country people, and collected as manure. 



