SI 6 25. Conferva. 1. HYDROPHYTE. PLcell.apli. 
e. Coloured , simple , brittle. Chantransia. 
53. Conferva fas data. Banded crow silk. 
Threads simple, slender, slimy, purplish brown ; joints 
as long as broad, with a narrow, central, transverse band. 
Conferva fasciata, Dillwyn , 23. 
On decayed sticks and leaves, in fresh water. 
Threads about half an inch long. 
54. Conferva lineata . Lined crowsilk. 
Threads simple, slender, brittle, brown ; joints two or 
three times as long as broad, with one or two transverse 
lines at uncertain distances from each other ; knots con- 
tracted. 
Conferva lineata, Dillwyn , 44. 
Fragilaria lineata, Lyngbye Hydr. Dan. 184, 
Leaves of fresh-water plants. 
55. Conferva Borreri. Borrer* s crowsilk. 
Threads simple, slender, brittle, palish brown ; joints ra- 
ther shorter than broad, combined in pairs ; spores in the 
centre of each joint. 
Conferva nummuloides, Engl. Hot. 2287. 
On marine plants. 
Threads short, tortuous, cylindrical, dirty white.— These 
three last species, as also c. dissiliens, might be formed 
into a very natural genus, bordering upon the diatomideae, 
from which they differ by the threads being cylindrical and 
solitary. 
