444. 109. Parmelia. 4. CENOTHALAME®. Pi. cell. aph. 
$1, Parmelia cycloselis. Circular border-moss. 
Thallus round, livid grey; underneath black, fibrilled, 
spongy; Jags grown together, tiledlike, rather flat, finger- 
like, many-cut, crenately torn, slightly fringed ; edges at 
length raised up, crisp rather powdery ; apothecia scattered, 
black, brown; lorder raised, not in the least cut. 
Lichen subtilis, Persoon, aecording to Achar Syn. Lich. 217. 
Lichen dentatus, Persoon, according to Acharius 1. c. 
Lichen orbicnlavis, Neckar Meth. 88. 
Lichen cycloselis, 4char. Prod, 115; Engl. Bot. 1942. 
Lobaria ordicularis, Huffm. Germ. 155, 
Parmelia cycloselis, Achar. Meth. 199; Lich. 482. 
On the trunks of trees. 
KE. Lecipem. Thallus crustaceous, adnate; apothecia 
shieldlike, bordered. 
XX. 110. PSOROMA. Acharius. Psorome. 
Thallus crustaceous, flat, expanded, adnate, uniform, in- 
determinately figured, scaly or tiledlike; apothecia saucer- 
shape, thick, sessile, adnate; proligerous flake forming the 
centre, plano-convex, coloured, covering the apothecium 
above; inside cellular, streaked; border thickish, formed 
of the thallus and similar in colour, nearly free. 
1. Psoroma cervinum. Stags-horn psorome. 
Crust in beds, figured, scaly, rather lobed, chestnut- 
colour; apothecia immersed, flattish, brownish black; thal- 
lord border at length prominent. 
Lichen squamulosus, Achar. Prod. 230; Engl. Bot. 2011. 
Lichen cervinus, Persson. 
Parmelia peliscy pha, Waklenb. in Achar. Meth. Suppl. Al, 
Parmelia squamulosa, Achar. Meth. 181. 
Lecanora halophwa, Achar. Lich. Univ. 498. 
Lecanora badia, Achar. Lich. Univ. 407. 
On walls and rocks, especially limestone. 
2. Psoroma crassum. Thick psorome. 
Crust scalelike, greenish white and brown; lobes tiled- 
like, deeply crenate, waved, irregular; apothecia flat, swol- 
len, brownish red, afterwards blackish brown 3; thalloid bor- 
der thin, not cut, at last very small. 
Lichen laqueatus, Wulf in Jacq. Coll. 3. ° 
Lichen cartilagineus, Lightf. Scot, 815. 
Lichen crassus, Hudson Fl. tngl. 659. 
Parmelia crassa, Achar, Meth. Lich. 185. 
Lecanora crassa, Achar, Lich. Univ. 19), 
On the ground on mountains. 
