From C. rivularis and C. genuflexa in a young ftate with which alone of the 

 fpecies heretofore defcribed there is any danger of confounding it, it may be dil- 

 tinguifhed by its lighter color and pellucid joints. From the former it alfo differs 

 in its mode and place of growth, its longer joints, and in the greater tenuity of 

 its filaments, and from the latter in its much greater length. 



In drying C. fordida adheres to both Glafs and Paper. 



A. C. fordida, natural fize. 



B. Ditto, magnified i. 



