PI. cell. aph. 1 . HYDROPHYTE. 25. Conferva. 311- 
Conferva oscillatorioides, Jgardh Disp , ed. 1,29. 
Conferva fugacissima oscillatorioides, Lyngbye Hydr. Dan. 137. 
Ditches, adhering to grass. 
32. Conferva puncialis. Dot crowsilk. 
Threads simple, very slender, rather slimy. Ion g’, joints 
about twice as long as broad ; granules collapsing into a 
solitary globule. 
Conferva punctalis, Dillwyn , 51. 
Conferva brevi-articulata, Mohr in Schrader Journ. 1801,475. 
Ditches and running water. 
Tufts about an inch long; threads twice as thick as 
c. floccosa, pale yellowish green. 
33. Conferva zonata. Girded crowsilk. 
Threads simple, slender, slimy; joints as long as broad ; 
granules in a transverse band. 
Conferva zonata, Roth Cat. 2,269. 
Conferva lucens, Dillwyn, 47 ; Engl. Bot. 1655. 
Lakes and rapid streams. 
Tufts gelatinous; threads 2 to 4 inches long, tapering, 
acute. 
34. Conferva dissiliens. Parting crowsilk. 
Threads simple, slender, equal, straight, slimy, brittle; 
joints half as long as broad ; at length separating from one 
another. 
Conferva disiliens, Dillwyn , 63 ; Engl. Bot. 4464. 
Diatoma? dissiliens, yjgardh Disp. ed. 1,34. 
Ditches. 
Tufts floating; joints hyaline, with a transverse or ovate 
spot in the centre. 
35. Conferva mucosa. Mucous crowsilk. 
Threads simple, very slender, slimy, yellowish green ; 
joints rather torose, about as long as broad. 
Conferva mucosa, Dillwyn } 46. 
Stagnant pools. 
Tufts floating ; threads straight, 3 inches long, very 
slimy. 
36. Conferva vesicata . Bladder ed crowsilk. 
Threads simple, slender ; joints here and there inflated, 
and proliferous, rather longer than broad. 
