•Acta Societatis pro Fauna et Flora Fennica, 53, N:o 1. 299 



F. lavata (Ach.) Th. Fr. Lich. Scand. II (1874) p. 629. Rh. ob- 

 scuratum b) lovatum Arn. Lich. Munch. (1891) p. 93. Lecidea atroalba 

 V. lavata (Ach.) Fr. Nov. Sched. Crit. (1827) p. 18, Lich. Suec. Exs. XIII 

 (1827) n. 383, Lich. Eur. Ref. (1830) p. 313. L. obscurata v. lavata Vain. 

 Adj. Lich. Lapp. II (1883) p. 138. Rh. lavatum Arn. Lich. Tirol XXIII 

 <1887) p. 90. Rh. obscuratum *oxydatam Koerb. Parerg. Lich. 3 Lief. 

 (1861) p. 233 (baud Fr.). L. petraea var. ferrata Nyl. Lich. Scand. (1861) 

 p. 234. Rh. obscuratum f. ferrata A. Smith Mon. Brit. Lich. II (1911) 

 p. 197. L. ochrotropa Nyl. Fl. 1875 p. 445. Rh. obscuratum f. lavata, 

 ferrana Britzelm. Lich. Exs. (1905) n. 700. 



Exs. Fr. Lich. Suec. Exs. XIII (1827) n. 383 (in Mus. Paris.). - 

 Arn. Lich. Exs. (1884) n. 1059 (in v. fuscocineream transiens). — Havaas 

 Lich. Norv. Exs. (1902) n. 119. — Malme Lich. Suec. Exs. XXV (1916) 

 n. 623. 



Thallus tenuis aut modice incrassatus, subcontinuus riinulo- 

 susque aut vulgo areolatus, areolis planis aut raro p. p. levi- 

 ter convexis, ochraceus aut pallidus. Apothecia disco ochraceo- 

 pruinoso aut fuscescente, margine vulgo crassusculo, concolore aut 

 nigro. 



Distr. Ad rupes et saxa granitica littoralia et in rivulis. Sat.: 

 Siikainen (A. J, Malmgren). Ta.: Teurois in Tammela (A. Kullhem). 

 Tb.: Norola in par. Jyvaskyla (L. ochrotropa Nyl. in Vain. Fl. Tav. 

 Or. p. 117). OKaj.: Suomula et Saarijarvi in Kianta (Vain.). 



Thallus subcontinuus rimulosusque aut areolatus, laevigatus. 

 Apothecia crebra aut irregulariter aggregata, lat. circ. I.2— O.s mm, 

 primum saepe thallum baud superantia, demum vulgo prominentia 

 adnatave. Perithecium intus fusco-fuligineum. Hypothecium fusco- 

 aut rubricoso-fuligineum, KHO distinctius rubricosum. Epithecium 

 fulvo-fuscescens aut fusco-rubricosum aut olivaceum et hymenium 

 superius dilute aeruginosum aut olivaceum fuscescensve (eiiam in 

 eodem apothecio varians), epithecio KHO saepe distinctius rubricoso. 

 Hymenium — O.120 mm crassum. Sporae 8:nae aut abortu pauciores, 

 decoloratae aut rarius demum sordide glaucescentes, long. circ. O.020 — 

 0.034, crass. O.012 — O.ois mm, submurales cellulisque paucis aut demum 

 murali-divisae et cellulis numerosis. Conidia recta, long. O.015, crass. 

 0.001 mm (sec. Arn. Lich. Tirol XIII p. 249). Gonidia cystococcoidea, 

 globosa, diam. 0.007 — O.012 mm, aut subellipsoidea et diam. 17X10, 14X12;«', 

 simplicia, chromatophoro centrali, anguloso irregularique, vacuolis late- 

 ralibus, membrana sat tenui. 



F. amphibola Vain. Lecidea amphibia Nyl. in Norrl. Fl. Kar. 

 Oneg. II (1876) p. 35; L. obscurata var. amphibia Vain. Adj. Lich. 

 Lapp. II (1883) p. 139 p. maj. p. 



