210 III.VERRUCARIOIDEI. 13. VERRUCARII. 



exs. 388. Lich. maurus EB. t. 2456. ic. bon. — Ad 

 saxa maritima Gall. Delise! Lamy ! Pelvetl Germ. bor. Flkl 

 exs. 131 , Suec. Fr. 



7. Pyrenula nigrescens (Verruc. nigrescens Pers. 

 in Ust. ann, XIV. 36). Thallus tartareus, fusco-nigricans , 

 rimuloso-areolatus, determinalus. Apothecia conica, apice 

 solum 6 thalli tuberculis basi dilatatis prominula , osliolo 

 papillato, integriusculo, Verruc. umbrina ^. nigrescens. 

 Spic. 336. Exs. 439. Bohl. lich. brit. VI. n. 41. ic. bon. 



— Ad saxa varia per omn. Europ. 



^. areolata Schaer ; thallo diffracto-areolato ; ^errucis 

 thalli ampliatis. Spic. 336. (castigandis synon.) — Ad saxa 

 calc. locis umbrosis et irriguis Helv. Schaer. 



8. Pyrenula umbrina (Verruc. umbrina Wahlenb. 

 suec. 871). Thallus tartareus , e fuscescente umbrinus, 

 verrucoso-granulosus laevigatusque , limitatus. Apothecia 

 sphaerica, thalli tuberculis semiiramersa ; ostiolo papillato i. 



— Ad saxa granitica juxta aquas in Scandinavia Wahlenb. 



— Num a priore vere diversa? Conf. Wahlenb. 1. c. 



9. Pyrenula dispersa (Verruc. dispersa Wallr. 

 crypt. germ. I, 308). Thallus tartareus, fusco-umbrinus, 

 diffracto-areolatus , effusus. Apothecia hemisphaerico- 

 conoidea ; ostiolo papillato , umbilicato, i. — „Ad saxa 

 arenar. Thuringiae minime rara et satis constans perithecioque 

 crassiore a Verruc. nigrescente, cui praeler lobulos 

 majores et contractiores similis , diversa esse videtur. 

 „Wallr. 1. c. — Num a nostra Verruc. nigresc. ^. 

 areolata diversa?" 



10. Pyrenula gibbosa (Ach. univ. 317). Thallus 

 tartareus , fuscescens , rimoso-areolatus, effusus. Apothecia 

 subglobosa , irregularia , hiantibus thalli tuberculis inclusa f. 

 Ach. in Berl. Mag. 1814, p. 12. t, 1. f, 8. — Ad rupes 

 montis Hochstein Lusatiae Mosig ap. Ach. 



11. Pyrenula spadicea (Verruc. spadicea Wallr. 

 crypt. germ. I. 308). Thallus tarlareus, spadiceo-fuscus, 

 rimoso-areolatus , determinatus. Apo^Aecm hesmisphaerica ; 

 ostiolo papillato, umbilicato f, ■ — Ad saxa porphyria et 

 calcaria Thuringiae , praesertim circa Halam frequens. — 

 Caute aV. dispersa strati gonimici hypothematici defectu 



