I believe feldom exceed an inch ; when young their thicknefs is regular, but 

 with age they fwell fo as in fome places to be twice as thick as in others. The 

 difTepiments are fo extremely (lender that they can only be obferved with the 

 higher powers of the microfcope. The joints are in length but about half equal 

 to their thicknefs ; they are nearly pellucid on each fide towards the difTepiments, 

 and when the plant is old the juices collapfe into globular granules, of which three 

 are ufually difpofed tranfverfely in each joint, though fometimes a fingle one 

 occupies the whole. C. fufco-purpurea approaches in many refpe£ts to C. Curta 

 and Roth's C. atro purpurea, but in the latter fpecies the juices are faid to collapfe 

 into a double row of granules, and the fize as well as the place and mode of growth 

 are very different, and from the former it is diftinguifhed by the color and texture 

 of the filaments, and ftill more effectually by the fhortnefs of the joints. 



j twv umuh.iu.ij iinvi uiu uiuii, (.ui^viuaiiy uy L11C lliUllUwla I 



In drying it adheres very firmly to both glafs and paper. 



A. C. fufco-purpurea, natural fize. 



B. filaments of ditto, magnified i . 



