Pl. cell.aph. 3. HOMOTHALAMEZ, 81.Enchyl. 397 
nulated ; apothecia sessile, pitchershape, dark brown; edge 
slightly swollen; outside wrinkled-granular. 
Collema turgidum, Achar. Lich. Univ. 634. 
On rocks among Mosses. 
5. Enchylium tenax. Tough enchyle. 
Thallus nearly orbicular, tilewise; doles rather thick, 
flat, lying down, nearly round, deeply cut and crenate; 
apothecia scattered, immersed in the lobes, concave, reddish, 
edge scarcely cut. 
Lichen tenax, Swartz in N. Act. Ups. 4, 249. 
Parmelia tenax, Achar. Meth. Lich. 231. 
Collema tenax? Hoffm. Fl. Germ. 105. 
Collema tenax, Achar. Lich. Univ. 635. 
Among mosses on rocks, adhering strongly to them. 
6. Enchylium plicatile. Folding echyle. 
Thallus round, tilewise; lobes thick, roundish, pleated in 
circles, wavey, rather upright, not cut; apothecia scattered 
sessile, hollow, colour of the thallus, edge not cut. ; 
Lichen plicatis, Achar.in N. Act. Stoch.-16, 11. 
Parmelia plicatilis, Achar. Meth. Lich. 240. 
Collema plicatile, Achar. Lich. Univ. 655. 
On rocks. 
9) 
7. Enchylium fluviale. River enchyle, 
Thallus slightly cushion-like ; lobes thick, crowded, blunt, 
complicately wavey, deeply cut; apothecia near the edge, 
slightly globular, colour of the thallus, centre pitchershape ; 
edge nearly double. 
Lichenoides gelatinosum opuntoides, Dillen in Raii Syn. 72, 58. 
Lichen fluviatilis, Huds. Fl. Angl. 536. 
Parmelia fluviatilis, Achar. Meth. Lich. 249. 
Collema fluviale, Achar. Lichen. Univ. 636. 
Qn stones under water in rivulets. 
8. Enchylinm marginale. Marginal enchyle. 
Thallus orbicular, rather stellate, tiledlike; lobes deeply 
jagged, narrow, many-cut, winding, rather flat, crenate; 
apotiecia marginal and scattered, blackish-brown, edge not 
in the least cut. 
Lichenoides gelatinosum fuscum, jacob maritime divisura, Dillen. 
Miusc. 140. 
Lichen marginalis, Huds. Fl. Angi. 5343; Engl. Bot. 1924. 
Parmelia melena marginalis, Achar. Meth. Lich. 241. 
Collema laciniatum, Hoffm. Fl. Germ. 100. 
Collema melzenum marginale, Achar. Lich. Univ. 637. 
On limestone rocks, occasionally overflowed. 
