Acta Societatis pro Fauna et Flora Fennica 49, N:o 2. 19 



Jatta Fl. It. Crypt. Lich. p. 789. Endopyrenium rufescens Koerb. Syst. 

 Lich. (1855) p. 323. Placidium rufescens Mass. Sched. Crit. (1855) p. 114; 

 Arn. Lich. Tirol XXI (1880) p. 145, XXX (1897) p. 34, Lich. Frank. 

 Jur. (Fl. 1885) p. 236. Rhodocarpon rufescens Lonnr. Fl. 1858 p. 619. 

 Dermatocarpon rufescens Th. Fr. Lich. Arct. (1860) p. 254. Endocarpon 

 liedwigii y. rufescens Schaer. Lich. Helv. Exs. XIX (1843) n. 465; Garov. 

 et Gib. De Lich. Endoc. (1872) p. 270, tab. II f. 1. 



Exs. Moug. et Nestl. Stirp. Voges. V (1815) n. 442 b. — Schaer. Lich. 

 Helv. Exs. V (1826) n. 115, XIX (1843) n. 465. — Funck Crypt. Fichtelg. 

 XXXVII (1832) n. 759. — Bohl. Lich. Brit. n. 75 (sec. A. Sm. 1. c). — 

 Zwackh Lich. Exs. (1850) n. 22. — Hepp Flecht. Eur. I (1853) n. 219. 

 — Rabenh. Lich. Eur. Exs. I (1855) n. 5. - Mass. Lich. It. Exs. VI 

 (1856) n. 188. — Desmaz. PI. Crypt. Fr. XII (1858) n. 597 (sec. Arn. et 

 Garov.). 



Thallus subfoliaceus, late adnatus, margine leviter an- 

 gusteque adscendente, polyphyllus, caespites vel crustam 

 haud latam vulgo formans, ambitu rotundato-lobatus crena- 

 tusve, lobis contiguis subconnatisve, concavus subplanusve, 

 superne rufus aut rarius testaceus fuscescensve, vulgo niti- 

 dus, subtus nigricans et late denudatus, medium versus 

 hypothallo plus minusve distincto instructus. Apothecia sat 

 crebra dispersave, thallo immersa. Perithecium albidum 

 pallidumve, margine ostiolari obscurato, rarius verruculam 

 leviter prominentem formante. Sporae ellipsoideae aut 

 partim subglobosae. 



Distr. Praesertim locis subcalcariis ad terram et muscos 



destructis et ipsam rupem in fissuris et lateribus rupium in 



Fennia rara. Karelia Ladogensis: Pekanvuorenriutta in Maki- 



salo prope Sortavala et Pullinvuorenriutta in Impilahti (K. 



Linkola). Karelia Onegensis: Valkeamaki (J. P. Norrlin), 



Tiudie (A. Kullhem). Kuusamo: ad Kitkajoki (F. Silen), 



Ruskeakallio (Vain.). Lapponia Enontekiensis: Koltapahta 



in reg. alpina et in jugo alpino Norvegico inter Kilpisjarvi 



et Lyngen (J. P. Norrlin). 



Thallus squamis circ. 7 — 9 mm longis, lobis circ. 3 — 4 mm 

 latis, humidus circ. 0.380 et siccus 0.360 mm crassus et ambitum 

 versus tenuius, ambitum versus subtus vulgo hypothallo late fere 

 destitutus, hyphis hypothallinis cinerascentibus aut obscuratis. 

 Stratum corticale superius circ. O.ooo mm crassum, plectenpa- 

 renchymaticum, leviter pachydermaticum, cavitatibus cellularum 



