THE AMERICAN 



MONTHLY 



MICROSCOPICAL JOURNAL 



Vol. I. 



New York, July, 1880. 



No. 7. 



Notes on Fresh- water Algas. 



{BULBOCHyETE.) 



The Bulbochaete form an inter- 

 esting family of fresh-water algse, 

 at once recognized by the bushy 

 growth of the plants, and by the 



tached to the upper end of the joint 

 or cell. 



The plants are generally found 

 attached to other algae or to water- 

 plants, sometimes singly, but more 

 frequently in small clusters, and 



Fig. 22. 



more characteristic feature, the long 

 bulbous-based, attenuated chaete or 

 bristles, with which many of the 

 joints of the filaments are furnished. 

 These bristles are long, jointless 

 and colorless, and are usually at- 



occasionally fringing sticks or root- 

 lets of trees extending into -the 

 waters of ponds. 



The illustration represents five 

 varieties. The species are sepa- 

 rated from each other by the dif- 



