Acta Societatis pro Fauna et Flora Fennica, 53, N:o 1. 273 



jodo plus minus caerulescens, dein partim vinose rubens (praesertim 

 asci reagentes). Epithecium fuscofuligineum, strato gelatinoso decolorato 

 obductum, KHO non reagens. Paraphyses baud ramoso-connexae, in- 

 crebre septatae, apice clavato O.002 — O.003 mm crasso, ad instar calyptrae 

 strato fuscofuligineo, inferne distincte limitato, dimidia parte totove 

 obducto, in KHO visae laxius cohaerentes (gelatina epitheciali laxiore). 

 Asci membrana fere tota modice incrassata. Sporae apicibus vulgo 

 rotundatis, membrana baud gelatinosa. 



Sp. fecundum (Th. Fr.) Vain. 



Lopadium fecundum Th. Fr. Lich. Arct. (1860) p. 202, Lich. Scand. 

 II (1874) p. 391; Almqu. Lich. lakt. Sib. (1879) p. 36, 49; Jatta Fl. It. 

 Crypt. Lich. p. 590; A. Sm. Mon. Brit. Lich. II (1911) p. 200. Lecidea 

 fecunda Nyl. in Stizenb. Lich. Helv. (1882) p. 171; Nyl. Enum. Lich. 

 Fret. Behr. (1888) p. 66; Vain. Lich. Exp. Vegae Pitlekai (1909) p. 109. 

 Lopadium sociale Hepp apud Koerb. Parerga Lich. 2 Lief. (1860) p. 174; 

 Arn. Lich. Tirol X (1873) p. 16 (104), XIII (1874) p. 263, XVIII (1878) p. 257; 

 Mull. Arg. Lich. Beitr. (Fl. 1881) n. 268. 



Thallus crustaceus, verruculoso-inaequalis, esorediatus, cinera- 

 scens aut albido-cinerascens aut fuscescens, modice incrassatus aut 

 tenuis. Apothecia adpressa et sat late adnata, basi constricta, lat. 

 0.7 — 1.5 mm, disco nigro, nudo, concavo aut piano, margine cinereo- aut 

 fusco-nigricante, modice incrassato, vulgo prominente, subpersistejjte, 

 integro. Hymenium circ. O.ieo mm crassum, jodo caerulescens. Epi- 

 thecium olivaceo-fuligineum aut „atroviride vel caerulescenti-nigricans 

 et KHO non reagens" (sec. Arn.). Hypothecium fuscum aut rubricoso- 

 fuscescens aut „pallide fuscescens" (sec. Arn.). Paraphyses sat crebre 

 ramoso-connexae. Sporae 8:nae, decolores pallidaeve „aut demum ob- 

 scuratae" (sec. Arn.), ellipsoideae oblongaeve, long. circ. O.028 — O.oss, crass. 

 0.016 — 0.017 mm (long. O.022— O.050, crass. O.oio — O.020 mm sec. Arn., Th. Fr. 

 et Nyl.), cellulis numerosissimis. 



Distr. Supra muscos destructos in regionibus alpinis hyperbore- 

 isque in Scandinavia (etiam in Finmarkia orientali) et Sibiria arctica 

 proveniens, in territorio nostro nondum coUectum est. 



3. Sp. betulinum (Hepp) Vain. 



Rhizocarpon betulinum Hepp in Fl. 1862 p. 524 et in Zwackh Lich. 

 Exs. (1859) n. 374; Arn. Lich. Exs. (1865) n. 276 a. Lecidea betulina 

 Nyl. Obs. Lich. Pyr. Or. (Fl. 1873) p. 52; Hue Addend. II (1888) p. 222. 

 Buellia Th. Fr. Lich. Scand. II (1874) p. 610. Diplotomma betulinum 

 Arn. Lich. Tirol XXIII (1887) p. 147, Lich. Frank. Jur. (Fl. 1885) p. 197, 

 Lich. Miinch. (1891) p. 92. Rhizocarpon efflorescens Th. Fr. Bot. Not. 

 1863 p. 10. 



18 



