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S98 Sl.Enchyl. 3. HOMOTHALAME^. PL cell. aph.
9. Enchylium fasciculare. Bundled enchyle.
Thallus nearly orbicular, folded tilewise ; ceyilral folds
upright, winding, anastomosing ; folds in the circumference
rounded, deeply crenate ; apothecia marginal, topshape,
bundled; centre rather convex, reddish.
Lichenoides gelatinosum palinatuni, tuberculis conglomeratis, Dill.
Muse. 141.
Lictien fascicularis, Lin.Mant. 133; Engl. Bot. 1162.
Parmeliafascicularis, Achar. Meih. Lich. 239.
Collenia fasciciilare, Achar. Lich. Univ. 639.
On rocks, mountains, and trunks of trees.
j3. aggregalum. Marginal lobes very small; central lobes
obliterated by the crowded apothecia.
Lichen fascicularis 13, Bern, in Schrad. Journ. 1799.
Coilema polycarpon, HoJ/'m. Fl. Germ. 102.
Collema fascicularc aggregatum, Achar. Lich. Un. 640.
10. Enchylium corrugatum. Pursed-vp enchyle.
Thallus thick, blackish green, with raised gutlike convo-
lutions.
Lichen corrugatus, Dickson PI. Crypt. Brit, 4.
Parmelia plocina, Achar. Meth. Lichen. 247.
Collema corrugatum, Achar. Lich. Univ. 642.
Mountains and rocks in the sea.
11. Encliylinm 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.
III. 82. SCYTENIUM. Acharius. Scyiene.
Thallus irregular, nearly leaflike ; lobes separate, spreading,
thick, swollen, naked.
Scytenium palmatum. Palmate scytene,
Thallus neai'ly leaflike, brownish blue green ; hies thick,
crowded, palmately cut, jags nearly linear, round ; apothecia
reddish brown.
Lichenoides gelatinosum tenerius laciniatum, ex fusco purpurascens.
Rail Syn. 72, 54.
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. J