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CHARACE^. 



Of the first of the two genera representing this order here, Chara 

 and Nitella, I have been fortunate enough to discover a very rare 

 species, heretofore unknown in Cumberland, in Chara polyacantha, 

 which I found in Newton Moss at the beginning of August, 1882. 

 One species, now I believe designated Nitella opaca, is of frequent 

 occurrence in Ullswater. It grows in sheltered bays, where it 

 roots among sand or gravel. Other species ought to be found in 

 upland pools and tarns. They are all aquatic, submersed plants. 



