iii the threads not being regularly paired, but conneaing themfelves with any 

 other that is near them ; in this refpea, manifefljng a ftrong affinity to C. reticu- 

 lata. 



In Plaiftow marines I found a number of apparently feedling plants, of which 

 I have added a fketch, growing on C. rivularis •, they feemed to adhere by a callus, 

 which is probably the cafe with the conferva in general. Among thefe vegetables 

 we mull confider the root as an organ of adhefion, not efiential to the growth of 

 the plant, as they continue to thrive when torn from it and floating on the furface 

 of the water, nourifhed probably by abforbents, placed either in fome particular 

 part, or generally covering the frond. 



A. Seedlings of C. genuflexa growing on C. rivularis, magnified 3. 



B. Filaments more advanced, 3* 



C. Ditto anaftomozing, 3- 



D. A fmall piece ditto, *• 



