FRESH WATER ALG>£. 



PLATE XVI. 





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"TS^E^wr. 



FIG,5 m 



460 ^ 





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 "^5^= 



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'4Ml! 



■■*"wr77 





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FIG 4. 



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fa 



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11 ;; f 



le J I'l 



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/ / 



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// 



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f Vi 



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% 



KJ 



H 



2eo 



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750 





(I 



AFTER NATURE BY OR H C WOOD 



HtLADtUPMIA. 



Fig. 1. SIROGONIUM RETROVE.RSUM. 

 " 2. HYDROGASTRUM GRANULATUM. 

 " 3. STIGEOCLONIUM. 



Fig. 4. BULBOTRICHA ALBIDA. 

 ■• 6. BULBOCH/tTE CANBYll. 

 " 6. STIGEOCLONIUM. 



