PL cell. aph. 4 . CENOTHALAMEiE. 109 . Parmelia. 441 
18 . Parmelia Fahlunensis. Fafilun border-moss. 
Thallus round, pitch black, smooth ; underneath black, 
unequal, slightly fibrilled ; jags sinuated, many-cut, fin- 
gered, diverging, flattish, slightly grooved ; edge raised, 
torn, granulated ; apothecia brassy brown ; border granu- 
lated. 
Lichenoides tinctorrum atrum, foliis minimis crispis, Dillen Muse. 188.. 
Lichen Fahlunensis, Lin. S. P. 1610; Engl. Bot. 653. 
Lobaria Fahlunensis, Hoffm. Germ. 154. 
Parmelia Fahlunensis, Achar. Meth. 203 ; Licit. 470. 
On rocks and stones. 
19 . Parmelia Slygia. Stygian border-moss - 
Thallus stellate, chestnut, pitch-black, shining; under- 
neath pitch-black, unequal, rather naked ; jags nearly 
linear, many-cut, slightly palmate, convex; edge and tip 
bent back ; apothecia same colour as the thallus, afterwards 
black ; border crenate. 
Lichen Stygius, Lin. S. P. 1610. 
Lobaria Stygia, Hoffm. Germ. 154. 
Parmelia Stygia, Achar. Meth. 203 ; Lich. 471. 
On stones and hills. 
20 . Parmelia aquila. Eagle-broum border-moss* 
Thallus round, chestnut brown; underneath paler, fibril- 
led ; fibrils black ; jags many-parted, nearly linear, convex ; 
of the circumference dilated, flattish, crenate; apothecia 
brown black ; border crenate. 
Lichen pullus, Light f. Scot. 825. 
Lichen aqulhis, Achar. Prod. 109; Engl. Bot. 982. 
Parmelia aquila, Achar. Meth. 201 ; Lich. 483. 
Upon rocks near the sea-coast. 
21 . Parmelia encausta. Enamel bidder -moss. 
Thallus stellate, pale grey ; underneath black, unequal, 
rather naked; jags flattened, convex, rather cylindrical, 
linear, many-cut, rather wrinkled, dotted with black; apo- 
thecia chestnut-colour; border very slightly crenate. 
Lichen multi punctus, Ehrh. Crypt. 31, 305. 
Lichen encaustus. Smith in Lin. Tr. 183 ; Engl. Bot. 2049. 
Lobaria pulla, Iloffm. Germ. 154. 
Parmelia encausta, Achar. Meth . 202; Lich. 489. 
On alpine rocks. 
