•ioG enumeration gEnerale 



11. E. imbricatum Nyl. — Gall. mer. 



12. E. exiguum Nyl. — Gallia. 



13. E. tenellumNyl. —Algeria. 



14. E. compaclum (Mass.). — Eur. 'Bavaria . 



15. E. pcltatum Tayl. — Cap. B. Spei. 

 ic. E. reticulatum Duf. — Hispania. 



it. Yca'a-HCiBE'aa Pers., Nyl. 



I. Species potissime saxicolx vel terrestres. 



Sec, tio A. — Paraph, nulla;, gel. liym. iodo normaliter rubens. 



a. — Tliallus squamulosus s. squamuloso-crustaceus, 



" Spora; incolores simplices, Sua; in thecis. 



1. V. tephroides (Ach ., End. ciner. Pers.) §i] — Eur., Am.bor. 



var. cartilaginea Nyl. — Eur. 



2. V. cinerascens.Nyl. — Gall, merid. 



var. creriulataNyl. — Gall, mer., Bavar. (Arn. lio . 



3. V. subcrustosa Nyl. — Algeria, ins. Canar. 

 ■4. V. Schaereri (Fr.. s. Parm.). — Eur. 



5. V. psoromia Nyl. ( End. psorom. Schaer'.). — Helvetia. 



" Sp. fusc.r' murali-divisse, inx in thecis. 



6. V. pallida (Ach. s. Endoc). — Eur. 



7. V. Garovaglii Mnt. — Eur. 



var. incrustans Nyl. (hue E. sored. Borr.)— Eur. occ. 



b. — Tliallus areolatus ant puivereusvel evanescens. 



* Sp. fusca; marali-divisa?, 2naj in thecis. 



8. V. umbiina Whlnb. — Eur., Amer. bor., Himalaya. 



var. clopima Whlnb. — Eur. 



var. calcarea Nyl. (Pol. nigella Kphb.). — Eur. 



var. raonospora Nyl. — Chili. 



9. V. gelatinosa Ach. — Eur. (Helv.). 



" Stirps V. r u p e s t r i s . Sp. 8na;, simplices, raro 1-5-sept. s. murales. 



10. V. fuscula Nyl. — Eur. (pra?s. mer.), Alger. 



11. V. catalepta Ach. — Eur. (Helvetia). 



12. V. amphibola Nyl. — Gall, mer., Algeria. 

 V. leeideoides (Mass. s. Thromb.). — Bavar. 



(1) Nomen tephroides hie prseferendum, ne conl'undatur Ver- 

 rucaria cinerea Pers. cum Endocarpo cinereo ejusdem. — Ge- 

 nus Verrucaria sistit species invicem maxime confluentes 

 aegerrimeque sa?pe limitandas. Nullibi auctores nomina nova 

 facilius proponere suadentur (praesertim parum experti) ; per- 

 suasi tamen sutnus species veras multo ctiam quidem esse pau- 

 ciores quam hie admisimus. 



