286 6. Scyton. 1. HYDROPHYT. Pl. cell. aph. 
Conferva myochrous, var. Dillw. Syn. 37; Engl. Bet. 1555. 
Scytonema myochrous, 4gardh 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, Wahi Fl. 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. 
B. simplex. Tufts brown-green; thread simple, very 
rarely emitting branches. 
Scytonema myochrous simplex, 4gardh Disp, ed. 1, 38. 
$. Scytonema ocellatum. Eyed leather-thread. 
Tufts very dense, blackish; threads very slender, orange, 
weak; Lranches facing one way, simple; sporidia beadlike. 
Conferva acellata, Dillw. Syn. 60; Engl. Bot. 2530. 
Scytonema myochrous ocellatum, 4gardh Disp, ed. 1, 38. 
Scytonema ocellatum, Lyngbye Hydr. Dan. 97. 
Floating wood and fresh-water plants in alpine lakes. 
Threads slightly bent; ranches sometimes solitary. 
b. Branches rodlike. 
4. Scytonema comoides. Wiglke 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, Dill. 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; lranches single, simple, scattered, upright, 
blunt, thinner at bottom. 
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