Parmelia, C. CiYcinaria. 495 



810. L. orbicularis JSeck. Iloffm. enum. t. 9. /. 1. L. 

 granosus Schrcb. spic. 128. 



Ad arborum praesertim domesticarum truncos, assercs 

 vetustos , tectorum tegulas et saxa vicina fere ubique. 

 (Stirps distincta at versipellis et reliquis aegrius inter- 

 pretanda, 1) Prima bl. initia mesogonimica s. chnau- 

 matica epipbloeodea (ad arbores domesticas seoio con- 

 fectas, Pyros, Malos, Sambucos v. c.) saepius primitiM 

 jam in bolo-s. mesogonidia fatiscunt, ita multiplicantur, 

 asyntbeta dissipantur et crustam pulverulentam pallidum 

 cinereo-virentem efFusam mentiuntur (m. mesogonimica 

 primitus asyntheta JFallr. I. I. I. 328. Lepraria oliva~ 

 cca /?. graminea Ach. syn. 331.),* hypopbloeodea autem 

 (in trabibus quercinis vetustis) summam ligni pelliculam 

 revelant glaucescentem ibique acervulorum nigro - viri— 

 dium specie semet educt (Spiloma microclonum Ach. syn. 

 3.). 2) Bl. initia periblastetica praeter easdem aberra- 

 tiones, loci injuria jubente v. c. ih tegulis nuncomnino ia 

 hologonidia primum prasino-viridia, facile vero decolora 

 et melanotropa (c/. Naturg. 1. 342.,* Byssus s. Lichen 

 antiquitatis auct„ pr. pr.) fatiscunt, nunc integra per- 

 sistunt, convesa congregantur et (iu arborum cortice 

 verrucoso lateribusque) saepe primitus in cymatia exigua 

 scutellaria abeunt (Parmelia sophodcs p. 444.), nune 

 (v. c. in liguo vetusto sepimentorum Hercyn.) denuo 

 adolescunt, constipantur, stratum epiblasteticum duriuscu- 

 lum album inducunt, in crustam verrucoso -glomeratam 

 eUusam congregantur et e vertice mesogonidia primum 

 viridia dein melanotropa glomerata transmittunt (Spilo-* 

 ma Wallrothianum Floerk. in lit.) ; alias iterum acoiyta 

 uiterius gliscunt et phyllorum naturam cei^tius ostendunt 

 quidem siinulac facile apicem marginemque versus iu 

 chnaumata fatiscunt (Lccanora virella Ach.) , vel radia- 

 tiin deplanantur, dein vero facile adscenduut, complican- 

 tur et fornicata in chnanmata a margine et superficie 

 fatiscunt (Lccanora lepraeformis Fl.}, ex insolatione 

 phaeotropa evadunt (Lecanora nigricans Fl.) et crustara 

 variatn Kemper inconditam, chnaumatum ubertate pessu'n- 



