138 



Univ. p. 156, pr. p., sec hb. Ach. L. iavata Nyi, Fl. 

 1873 p. 23, sec. determinationes. 



Thallus areolatus, areolis planiusculis vei conve- 

 xiusculis, minutis, vulgo contiguis, cinerascentibus, ci- 

 nereo-fuscescentibus vei pallidis, K fere — , medulla I 

 haud cserulescente. Apothecia plaua, haud raro centro 

 papillata, margine persistente, vulgo sat crasso. Sporse 

 8:nEe, murales, incoloratse vei raro demum obscuratse, 

 longitudille 0,022—0,042 raillim., crassitudine 0,009— 

 0,018 milliin. 



var. fuscocinerea Krmplh., Lich. Bay. (1861) p. 203. 



Thallus sat tenuis, cinerascens vei fuscocinerascens. 

 Apothecia adnata vei subinnata, demum subelevata, 

 margine crasso. — In Karelia boreali et regione infra- 

 lapponica Ostrobotniee sat frequens. Ad Kitkajoki in 

 par. Kuusamo (F. Sil^n). Ad saxa praesertim in cam- 

 pis apricis crescit. — Hymenium parte superiore vulgo 

 smaragdulum, epithecio olivaceo vei fuscescente. Hypo- 

 thecium fusconigricans vei fuscescens. 



f. orphnina m. 



Hymenium parte superiore fuscescenti- vei viola- 

 ceofuscescenti-fuligineum. Thallus areolatus, areolis pla- 

 niusculis, contiguis, obscure vei fuscescenti-cinereis. — 

 Supra saxa in rivulis ad Pyssyvaara in par. Nurmes 

 Karelise borealis et ad Saukko in par. Kianta Ostro- 

 botnise. — Hypothecium fuscescenti- vei rubricoso-nigri- 

 cans. Thallus sat tenuis vei fere mediocris. Apothe- 

 cia nuda, subinnata vei fere adnata, demum leviter ele- 

 vata, margine crasso. 



var. Iavata (Ach.) Fj.-.; Nyi, Scand. p. 234. L. Iavata Ach., 

 sec. hb. Ach. (epithecio fuscescente). L. atroalba ö- Ia- 

 vata Fr., Lich. Eur. p. 313, saltem pr. p. L. ochrotropa 

 Nyi., Fl. 1875 p. 445, sec. spec orig. (in eodem speci- 

 mine epithecium fuscescens, olivaceum et sordide caeru- 

 lescens). L. petrsea v. ferrata Nyi., Scand. p. 234, sec. 

 spec. orig. in Mus. Fenn. 



