6a A L G /E 



Crufta tartarea. Scuta frequentiffima. 



(e) Licken crufiaceus verrucofus albicans, fcutellis 

 luffiifcis feflilibus plauis • margine cinereo fub- 

 crenato. 



hich.cn cYiijlaceus albicans , fcutellis fubfufas , 

 rtiargine cinereo fulcrenato. Linn. Fl. Svec. 

 943. Spec. plant. p. 1142. 



Lichcnoides crujlaceum & leprofum , fcutellts 

 fubfufcis. Dillen. Giff. p; 205. JVIufc. p. 134- 

 Tab. 1 8. ng. 16. 



Lichen crujlaceus } atboribus adnafcensj ex ciii?- 

 reo . albicans, receptaadis jlorum crebri^ fubfufas, 

 innbo albo^crenato cinctis. Michel. Gen. plant. 

 p. 97. Hall. Helv. p. 83. 

 Habitat in Fago, Pruno, Pyro &c. 

 Scuta alba , dein rubra, denique nigra; margini- 

 bus integerrlmis, & demum crenatis monent Botani- 

 cos, ne ih multiplicandis Lichenum cruftaceorum fpe- 

 ciebus, tam faciles fint. 



(f) Lichen cruftaceus verrucofus albicans, fcutellis 

 atris fetfllibus planjs: margine albo. 



Habitat in fummis cacuminibus ALpium Krambur- 

 genfum. 



Colore fcutorum immutabili , & llmbis integerri- 

 mis,.a priore diverfus eft. 

 17. Lichen cruftaceus, fcutellis leililibus convexis. 



Varietates. 



(a) Lichen cruftaceus cinereus, fcutellis fefnlibus coiv 

 vexis ilavis. 



An Lichen crujlaceus, arboribus alnafcens , ex 

 alhc-fubeinereus, receptaCulis florum aunus , nudis. 

 Michel. Gen. plant p. 9$ % 

 In junipero reperi. 

 Scuta exigua, fere hemifphaerica, 



(b) Li- 



