282 THE MARINE BOTANIST. 



SERIES III. 



CHLOROSPERMEiE. 



THE GRASS-GREEN SERIES. 



Plants of a grass-green, rarely purple colour; 

 growing in the sea, in fresh water, or in damp 

 situations. Fructification : ^^1. spores green or 

 purple, formed within the cells, often at maturity 

 vivacious, moving by means of vibratile cilia ; 

 2. coniocystcPy or external vesicles, containing a 

 dense, dark coloured mass, and finally separating 

 from the frond." 



