THE MARINE BOTANIST. 71 



tudinal fibres, invested with gelatine; the outer 



of spreading, forked, coloured filaments. Fructiji- 



cation, spores attached to the forks of the outer 

 filaments. 



MESOGLOIA VERMICULARIS. 

 WORM-LIKE MESOGLOIA. 



Fronds from one to two feet high, thick, worm- 

 like, flaccid, and gelatinous, ramuli long, and many 

 resembling the branches. Colour pale olive-green 

 or yellow. Spores common, ovate in form. Grows 

 on rocks and stones between tide-marks, common. 

 Annual. Summer. 



MESOGLOIA GRIFFITHSIANA. 

 GRIFFITHS' MESOGLOIA. 



Fronds eight to sixteen inches high. Stem 

 nearly simple, set throughout its length with long, 

 slender, simple, alternate or opposite branches, 

 ^^ The surface covered with long colourless fibres, 



