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



33 



Lapponia Tulomensis: Kola et ad Sinum Kolaensem (N. I. 



Fellman). 



Polyblastiam peminosarn et Verr. lecideoidem in memoriam 

 revocans. Perithecium globosum, nigricans, basi multo tenuius 

 et dilutius coloratum (fuscescenti-pallidum). Sporae long. O.ois- 

 0.026, crass. O.oio— O.ou mm. Gelatina hymenialis jodo viola- 

 scens. 



Var. griseonigrescens Vain. 



Adj. Lich. Lapp. II (1883) p. 176. 



Thallus sat crassus aut modice incrassatus, areolaco- 

 diffractus, subgriseo-nigrescens, opacus, hypothallo parum 

 evoluto. Apothecia thallo semiimmersa. Perithecium lat. 

 circ. 0.2—0.25 mm, vertice demum prominente, nigro, nudo, 

 amphithecio thallino vix ullo distincto. Sporae long. O.ois— 

 O.021, crass. O.009 — O.012 mm. 



Distr. Supra saxa granitica subinundata in regione 

 betulina ad Kongas prope Mare Glaciale in Lapponia Ina- 

 rensi (Vain.). 



Proxime affinis var. griseocinerascenti. Perithecium integrum, 

 fusco-nigricans. Gelatina hymenialis jodo violascens. Sporae long. 

 O.015 — O.021, crass. O.009 — O.012 mm. 



Var. margacea (Wahlenb.) Vain. 



Adj. Lich. Lapp. II (1883) p. 174. Thelotrema margaceum (Wah- 

 lenb.) Ach. Meth. Lich. Suppl. (1803) p. 30. Pyrenula margacea Ach. 

 Lich. Univ. (1810) p. 315, Syn. Lich. (1814) p. 127. Verrucaria margacea 

 Wahlenb. Fl. Lapp. (1812) p. 465; Nyl. Prodr. Lich. Gall. (1867) p. 181 

 p. p., Exp. Pyrenoc. (1858) p. 25 p. p., Lich. Scand. (1861) p. 272 (excl. 

 var.), Lich. Lapp. Or. (1866) p. 169 (excl. var.); Norrl. Bidr. Sydostr. 

 Tav. Fl. (1870) p. 194; Vain. Fl. Tav. Or. (1878) p. 120, Lich. Vib. (1878) 

 p. 71; A. Smith Mon. Brit. Lich. II (1911) p. 281; Jatta Fl. It. Crypt. 

 Lich. (1911) p. 808. 



Thallus modice incrassatus aut rarius tenuis, rimulosus, 

 olivaceo- aut cinereo-fuscescens, opacus, hypothallo parum 

 evoluto. Perithecium lat. 0.5—0.4 (— O.35) mm, vertice anguste 

 aut demum sat late denudato. Sporae long. O.024— O.032 (O.022- 

 O.037), crass. O.ou — O.017 mm. 



Distr. Ad saxa littoralia praesertim fluminum sat rara. 

 Karelia austr.: Vanhaviipuri (Vain.). Tavastia austr.: Saukon- 



