398 81.Enchyl. 3. HOMOTHALAME:. Pi. cell. aph. 
9. Enchylium fasciculare. Bundled enchyle. 
Thallus nearly orbicular, folded tilewise; central folds 
upright, winding, anastomosing ; folds in the circumference 
rounded, deeply crenate; apothecta marginal, topshape, 
bundled; centre rather convex, reddish. 
Lichenoides gelatinosum palmatum, tuberculis conglomeratis, Dill. 
Musc. 141. 
Lichen fascicularis, Lin. Mant. 133; Engl. Bot. 1162. 
Parmelia fascicularis, Achar. Meth. Lich. 239. 
Collema fasciculare, Achar. Lich. Univ. 639. 
On rocks, mountains, and trunks of trees. 
6. aggregatum. Marginal lobes very smatl; central lobes 
obliterated by the crowded apothecia. 
Lichen fascicularis 8, Bern. in Schrad. Journ. 1799, 
Collema polycarpon, Hoffm. Fl. Germ. 102. 
Collema fasciculare aggregatum, Achar. Lich, Un. 640. 
10. Enchylium corrugatum. Pursed-up enchyle. 
Thallus thick, blackish green, with raised gutlike convo- 
lutions. 
Lichen corrugatus, Dickson Pl. Crypt. Brit. 4. 
Parmelia plocina, Achar. Meth. Lichen, 247. 
Collema corrugatum, Achar. Lich. Univ. 642. 
Mountains and rocks in the sea. 
11. Enchylium cretaceum. Chalky enchyle. 
Thallus lobed starwise, blackish green ; apothecium cen- 
tral, raised, brownish flesh-colour, edge paler, not cut. 
Lichen cretaceus, Engl. Bot. 738. 
Parmelia cretacea, Achar. Meth. Lich. 248. 
Collema cretaceum, Achar. Lich, Univ, 642. 
Chalk-pits. 
Ill. 82. SCYTENIUM. Acharius. Scytene. 
Thallus irregular, nearly leaflike; doles separate, spread- 
ing, thick, swollen, naked. 
Scytenium palmatum. | Palmate scytene. 
Thailus nearly leaflike, brownish blue green; lobes thick, 
crowded, palmately cut, jags nearly linear, round ; apothecia 
reddish brown. 
Lichenoides gelatinosum tenerius laciniatum, ex fusco purpurascens, 
Raii Syn. 12, 54. y 
Lichen palmatus, Huds. Fl, Angl. 535. 
Parmelia palmata, Achar. Meth. Lich, 242. 
Collema palmatum, Achar. Lich. Univ. 643. 
Upon muddy ground and trunks of trees. 
