286 6. Scyton. I. HYDROPHYTE. Pl.cell.apk. 
Conferva myochrous, var. Dillvo. Syn. 37 ; Engl. Bot. 1555. 
Scytonema myochrous, Agardh Disp. ed. 1,38. 
Caves and sides of rocks. 
Tufts green when dry ; threads olive-yellow, rather 
weak, slightly attenuated, branches coming out at right 
angles ; sporidia black, rarely globular. 
2. Scytonema seriatum . Rowed leather-thread . 
Tufts very thickly entangled, blackish brown ; threads 
slender, purplish brown ; branches in pairs, facing one way ; 
sporidia roundish. 
Conferva myochrous, Dillw. 19; Engl. Bot. 1555. 
Conferva seriata, Wahl FI. Lap. 984. 
Scytonema myochrous inundatum, Agardh Disp. ed. 1,39. 
Alpine inundated places. 
Tufts a quarter of an inch thick, wool-like ; threads twice 
as long. 
j3. simplex. Tufts brown-green ; thread simple, very 
rarely emitting branches. 
Scytonema myochrous simplex, Agardh Disp. ed. 1, 38. 
3. Scytonema ocellatum. Eyed leather-thread. 
Tufts very dense, blackish ; threads very slender, orange, 
weak; branches facing one way, simple; sporidia beadlike. 
Conferva ocellata, Dilho. Syn. 60; Engl. Bot. 2530. 
Scytonema myochrous ocellatum, Agardh Disp.ed. 1,38. 
Scytonema ocellatum, Lyngbye Hydr. Dan. 97. 
Floating wood and fresh-water plants in alpine lakes. 
Threads slightly bent; branches sometimes solitary. 
b. Branches rodlike . 
4. Scytonema comoides. Wiglike leather-thread. 
Tufts loose, iron black ; threads bent, hair-brown ; 
branches single, rather distant, ascending, truncated at the 
tip. 
Conferva rufa, Roth Cat. 3, 280? 
Conferva araneosa, Mohr in Schrad. Journ. 1806, 196. 
Conferva comoides, Dillva. 27 ; Engl. Bot. 1700. 
Scytonema comoides, Agardh Syn. 112. 
Stones on the shores, and marine plants. 
Tufts oblong; threads much branched, an inch long; 
sporidia beadlike. 
5. Scytonema radicans. Rooting leather-thread . 
Tufts dark olive-brown, loose; threads creeping, straight, 
rather stiff; branches single, simple, scattered, upright, 
blunt, thinner at bottom. 
