PL cell, aph, 4. CENOTHALAMEiE, 109. Parmelia. 439 
Lichenoides cnista foliosa scutellafa, flavescens, Raii Syn. 59. 
Lichen parietinus, Lin. S. P. 1610, 
Lobaria parietina, Hojfm. Germ. 15S. 
Parmelia parietina, Achar. Meth. 213; Lick. 465. 
On walls, trunks of wood and stones. 
10. Parmelia el&ina . Olive-brown border-moss . 
Thallus round, nearly membranaceous, contiguous, fold- 
ed, radiated, olive-brown ; circumference lobed, lobes 
deeply crenated, flat, nearly truncated ; apothecia dark um- 
ber; border not in the least cut. 
Lichen elceinus, Wahlenb. FI. Lapp. 425. 
Lecanora ehsina, Achar. Licit. 429. 
Parmelia elaeina, Wahlenb. in Achar. Meth. Suppl. 45. 
On rocks. 
1 1 . Parmelia pityrea . Pine border-moss . 
Thallus round, grey, powdery; underneath white; fibrils 
black; central jags folded, torn, crisp, edge powdery; out- 
ward jags flat, rounded, crenate, hoary ; apothecia concave, 
black brown, hoary; border not in the least cut. 
Lichen laniiginosus, Hojfm. IJch. 32. 
Lichen pifyreus, Achar. Prod, 124; Engl. But. 2064. 
Lobaria pulveracea, Hojfm. Germ. 153. 
Parmelia pityrea, Achar. Lich. Univ. 483. 
On the bark of the trunks of trees. 
12. Parmelia Clemen liana. Clement border-moss . 
Thallus round, greyish white, granularly powdery; un- 
derneath the same colour ; fibrils very small, blackish ; jags 
of the circumference flat, deeply crenate, rather naked; 
apothecia pressed close, flat, brown black; border not in 
the least cut. 
Parmelia Clementiana, Turner in Trans. Lin. Soc. 9, 146. 
Lichen dementi, Engl. But. 
On the bark of oak-trees. 
13. Parmelia lanuginosa. Woolly border-moss . 
Thallus round, white, slightly brimstone-yellow, pow- 
dery ; underneath black, bluish, woolly ; lobes tiledlike, 
flat, rounded, very finely crenated; apothecia red; border 
powdery. 
Lichen membranaceus, Dickson Crypt. 2,21. 
Lichen laniiginosus, Achar. Prod. 120. 
Parmelia lanuginosa, Achar. Meth. 207 ; Licit. 465. 
On the ground, and mosses on moist shady hills. 
