1 



FRESH WATER ALG/£ 



PLATE XIV. 



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4-3. 



wu 



i5f ,v 



;vs^' 



(g 



6r- 



Wo 



W 



AFTEH NATURE ev DR H C WOOD 



1 5mCLA'P aSO" PKiLADFl.Pi'.lfl 



Fig. 1. RHYNCHONEMA ELONGATUM, 

 ' 2. RHYNCHONEMA PULCHELLUM. 



Fig. 3. SPIROGYRA PROTECTA. 

 " 4. SPIROGYRA LONGATA. 



Fig, 5. APHANOCHAETE REPENS. 

 " 6. DRAPARNALOIA BILLINGSII 



