PaRMELIA. Ctrcinarla. 



83. Parmelia virella: thaJIo submembranaceo stel- 

 lato cinereo-viridi, subtus atro fibrilloso-spon- 

 gioso, laciniis brevibus subimbricatis planis 

 inciso-lobatis obtusiusculis ; scutellis planis ru- 

 fis, margine inflexo cinerascente integerrimo. 

 Lichen virellus Lich. Pr. p. 108. 

 Habitat in saxis. Swartz. 



Obs. Viridissima fit dum hume&atur. Prseter so- 

 redia virescentia etiam granula coccinea glabra 

 sparsa occurrunt, in Lichene recenti evidentiora. 

 Thallus vix stellatus sub-orbicularis , diametro se- 

 mi-unciali vel paullo ultra. Ob soredia undique 

 erumpenda per aetatem totus Lichen pulveruien- 

 tus evadit 8C Jobuli vix distinguendi. 



84.. Parmelia recurva: thallo crustaceo-membra- 

 naceo stellato cinereo- virescente , subtus nigro 

 fibrilloso-spongioso, laciniis subimbricatis an- 

 gustissimis muitifidis margine apiceque refle- 

 xis ; scutellis concaviusculis rufis , margine in- 

 flexo virescerite. 



Lichen incurvus Lich. Pr. p. 107. PERSOON 



in Usr. Ann. d. Bot. St. 7. p. 24. LU 



chen muitijidus Dicks. Cr. Br. 3. p. 16. 



Icon. Dicks. 1. c. T. 9. f. 7. 



Habitat ad moutes &. saxa. 



Obs. Thallus constanter orbicularis, diametro 2-4 

 pollicari SC ultra. Pulvinuli 1. potius forte soredia 

 hemisphaerica pulverulenta sparsa albo-virescentia. 

 Color in olivaceurn 8C nigricantem interdum mu- 

 tatur. Scutellas rarissimae. Lacinis sequas ac earum 

 apices recurvse ut in Parmdia stygia 8C P. stellari, 

 nec incurvae. 



85. Parmelia aquila: thallo cai tilagineo-membra- 

 naceo substellato obscure fusco, subtus palli- 

 diori nigro - fibrilloso, laciniis imbricatis an- 

 gustissimis multifidis margine recurvis in am- 

 Meth. Ligh. R bitu 



