398 81 . Enchyl. 3 . HOMOTHALAMEAE. Pl.cell.aph. 
9 . Enchyliurn fasciculare. Bundled enchyle. 
Thallus nearly orbicular, folded tilewise; central folds. 
upright, winding, anastomosing ; folds in the circumference 
rounded, deeply crenate ; apothecia marginal, topshape, 
bundled; centre rather convex, reddish. 
Lichenoides gelatinosum palmatum, tuberculis conglomerate, Bill. 
Muse. 141. 
Lichen fascicularis, Lin. M ant. 133; Engl. Bot. 1162. 
Parmelia fascicularis, Achar. Meth. Licit. 239. 
Collema fasciculare, Achar. Licit. Univ. 639. 
On rocks, mountains, and trunks of trees. 
(3. aggregatum. Marginal lobes very small; central lobes 
obliterated by the crowded apothecia. 
Lichen fascicularis /3, Bern, in Schrad. Journ. 1799. 
Collema polycarpon, Hoffm. Ft. Germ. 102. 
Collema fasciculare aggregatum, Achar. Lich. Un. 640. 
10. Enchyliurn corrugatum. Pur sed-up enchyle. 
Thallus thick, blackish green, with raised gutlike convo- 
lutions. 
Lichen eorrugatus, Dickson PI. Crypt. Brit. 4. 
Parmelia plocina, Achar. Meth. Lichen. 247. 
Collema corrugatum, Achar. Lich. Univ. 642. 
Mountains and rocks in the sea. 
11. Enchyliurn 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. Licit. 248. 
Collema Cretaceum, Achar. Licit. Univ. 642. 
Chalk-pits. 
III. 82 . SCYTENIUM. Acharius. Scytene . 
Thallus irregular, nearly leaflike; lobes separate, spread- 
ing, thick, swollen, naked. 
Scytenium palmatum. Palmate scytene. 
Thallus 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. 72, 54. 
Lichen palmatus, Huds. FI. Angl. 535. 
Parmelia palmata, Achar. Meth. Licit. 242. 
Collema palmatum, Achar. Lich. Univ. 643. 
Upon muddy ground and trunks of trees. 
