Mi FEESH-WATER ALGiE. \_C/ilorosjjerme{e, 



unseen creatures that dwell among these weeds, that they 

 may all be made subservient to the well-being of man. 



After this digression respecting these animalcules, which 

 I have often admired without thinking that in their sportive 

 movements they were contributing to the happiness of 

 the human race, we shall turn our attention for a little to 

 some of the fresh-water Algae, amidst which they are so 

 plentifully found. We shall select some that are by no 

 means rare, and whose beauty is very evident, even to the 

 naked eye. AYe begin with one which may be found in 

 almost every stream in all places of our land. 



CLADOPHOEA, Limiaus. 



Gen. Char. Filaments rising from a scutate root, finely tufted, 

 bushy, somewhat rigid, bright green, branches crowded, irre- 

 gular, erect ; the ultimate ramuli secuiid, subfascieulate ; articu- 

 lations 4-8 lines longer than broad. — Harvey & Manual. 



1. Cladophora glomerata, Linnceus. (Plate XX. 

 fig. 7 8, portion of the frond, natural size ; and on the left 

 a branchlet, magnified.) 



Hab. In clear streams, wells, &c. It is very common, 

 attaching itself to stones and sticks in streams and pure 

 ponds. 



