206 THE MARINE BOTANIST. 



PHYLLOPHORA. 



Name leaf -hearing , so called from the proliferous fronds of 

 the species. 



Frond stalked, rigid-membranaceous, proliferous, 

 nerveless or witli a vanislimg nerve, cellular, cells 

 minute. Fructification : 1, tubercles scattered over 

 the frond, containing spores ; 2, warts {nema- 

 thecia) seated on the frond, at length containing 

 spores ; 3, tetraspores, collected into sori, either 

 towards the tip of the frond or in proper leaflets. 



PHYLLOPHORA RUBENS.— RED 

 PHYLLOPHORA. 



Fronds tufted, three to eight inches high. Stem 

 small, expanding into a simple or more often 

 forked frond 5 from the surface of the segments, 

 another similar- shaped frond arises, which again 

 bears a new frond in like manner. Tubercles sessile, 

 small, scattered over the frond, warts (nematheeia), 

 common, concealed under little leafy processes. 



