Pl.cell.aph. I. HYDROPHYTiE. 25. Conferva. SOT 
14. Conferva riparia. Bankside crowfoot * 
Threads nearly simple below, branched above, yellow 
green ; handles remote, divaricating, long, mostly simple, 
coming out at a rounded angle; joints twice as long as 
broad ; knots pellucid. 
Conferva riparia, Dillwyn Syn. 69 ; Engl. Bot. 2100. 
Conferva obtusangula, Lyngbye Hydr. Dan. 159. 
Sea- shore, or banks of salt pools. 
Tvfts thickly entangled ; joints divided in the fork* 
rounded. 
15. Conferva lanosa. Woolly crowfoot . 
Threads branched, very slender, straight, clustered, yel- 
lowish green ; twigs remote, long ; joints lower twice, up- 
per 5 or 6 times as long as broad. 
Conferva lanosa, Roth Cat. 3, 291 ; Engl. Bot. 2099. 
Rocks near the sea ; summer. 
Tvfts very close, roundish ; threads about three quarters 
of an inch long ; joints rather bellied, upper much the 
longest. 
0. zoster a. Threads light green, shining. 
On marine plants. 
16. Conferva arcta. Contracted crowsilk. 
Threads branched, stiff, bluish green ; branches rather 
spreading ; twigs scattered, adpressed ; knots pellucid, con- 
tracted; joint 5, lower as long, upper 8 or 10 times as long 
as broad. 
Conferva arcta, Dillwyn , 67 ; Engl. Bot. 2090. 
Sea shores, or on rocks. 
Tvfts very close, 2 or 3 inches long; branches nearly 
parallel. 
17. Conferva cervginosa. Coppery crowsilk . 
Threads branched, bent, short, verdigris green ; branches 
scattered, spreading, blunt; joints rather longer than 
broad. 
Conferva marina capillacea brevis, viridissima mollis, Dillen Muse . 
4, 20. 
Conferva aeruginosa, Hudson FI. Angl. 595. 
On other marine plants. 
Threads about half an inch long. 
x 2 
