440 JAMES BURTON ON ALGAE COLLECTED IN 1911. 



net -like bodies often of considerable size and of the most diverse 

 shape up to 2 or even 3 mm. in length. 



Dr. Cooke writes of this species : " Fronds gelatinous, at 

 first solid, then saccate, ultimately clathrate, composed of a 

 colourless matrix in which are embedded innumerable minute 

 cells, which multiply by division within the frond. Fronds 

 floating in vast strata on freshwater pools, forming a bright- 

 green scum, when dried appearing like a crust of verdigris. Cells- 

 minute, 2 1 to 3| /i,." 



Jourh. Qucktit Microicopical Club, Scr. 2, V<d. XL, Ho. 70, Aprit WV, 



