VERRucaria Lithoicea, 



18. VERRUCARIA gelatinofa. 



V. crufta gelatinofa inaequabili fufeo-nigra; apotheciis globofis femiimmerfis, 



oftiolo impreffis , intus fufcis. 

 Habitat ad mufcos quibus crufta inftrata eft in Helvetia. Sehlekher. 

 Crufta ficca duriufcula nigra, emollita quafi tenax gelatinofa haud raro fatis crafla 



e viridi fufco-atra. Apotheciorum dimidia pars thallo immerfa. 

 A Verrucaria mucofa differt thallo crafliori intus fubpulveraceo haud laevi- 



gato, apotheciis multo majoribus fupra tballum magis proininentibus et oftiolo 



puncliformi femper notatis, nec non colore nuclei viridi-fufco. 



19. VERRUCARIA ceuthocarpa. 



V. crufta fubgelatinofa rimofo • areolata atra, in ambitu effigurata incifo-crenata; 

 apotheciis globofis immerfis apice papiliato prominentibns , nucleo byali, 

 no - corneo. 



Verrucaria ceuthocarpa Wahlenb. — Achar. Meth. Lich. p. 22, 



Habitat in rimis foveolisque petrarum juxta littora aqua marina irrigatis Finmatkiae 

 Norvegicae. Wahlenb. 



Crufta tenuis fubmembranacea , per aetatem craftiufcula , maculas efrormat irregu- 

 lares minores, faepe conlluentes. Areolae fatis difcretae irregulares et fupra 

 •inaequabiles , marginibus elevatis, opacae, palTnn apotheciorum occultorum 

 papillulis notatae , in ambitu longiores et radiatim difpofitae incifo- lacinia. 

 tae crenataeque. 



Iff Thallo cruftaceo fubtartareo contiguo vel rimofo- 

 a r e o 1 a t o. Lithoicea. 



20. VERRUCARIA chlorotica. 



V. crufta tenui contigua pallido - virefcente ; apotheciis minutis feflllibus hemifphae- 



rico -fubglobofis fcabriufculis, intus cinereo-nigricantibus. 

 Habitat in faxis Lufatiae. Mojig. 



Crufta tenuiflima dilute olivacea cohaerens nec rimofa haud glabra. Apothecia cre- 

 berrima minuta, fed diverfae magnitudinis , cruftae fubimmerfa vel etiam plane 

 feflilia compreflb- fubglobofa , rarius papilla vel oftiolo apicis inftrucla, atra 

 opaca elevato-pundata unde fcabrida apparent. Nucleus ob minutiem haud 

 bene diftinguendus. 



Oo % 



2r. 



