Acta Societatis pro Fauna et Flora Fennica, 49, N:o 2. 171 



impresso, maculam rufescentem nigricantemve, circ. O.i mm 

 latam formante, perithecio ceterum albo, ostiolo minutissimo. 

 Sporae acieulares, septis transversis numerosis, long. circ. 

 0.054—0.044, crass. O.003 mm. 



Distr. In latere boream versus sito rupis gneissaceae 

 Variskallio prope Kirjavalahti in Karelia Ladogensi (J. P. 

 Norrlin). 



Gonidia ad Trentepohliam iolithum pertinentia, cellulis 

 anguloso-subglobosis aut raro subellipsoideis, concatenatis aut 

 solitariis, diam. vulgo O.020 (O.014 — O.024) mm, membrana sat 

 crassa. Perithecium subglobosum. Nucleus albus, guttulas resi- 

 nosas baud continens, jodo caerulescens. Periphyses haud evo- 

 lutae. Paraphyses numerosissimae, simplices, crass. O.0007 — O.0015 

 mm. Asci fusiformes, long. O.090 — O.110, crass. O.012 — O.016 mm, 

 membrana sat tenui. Sporae 8:nae, rectae, apicibus sat acutis 

 aut obtusis aut apice superiore raro rotundato, septis 8 aut 

 secundum Koerb. 14 — 20, cellulis cylindricis, vulgo aeque longis. 



Obs. Beloniella cinerea Norm, secundum specim. orig. in herb. 

 Nyl. gonidiis instructa est ad Trentepohliam pertinentibus, cellulis 

 concatenatis aut solitariis, globosis, diam. O.012 — O.oos mm, membrana 

 modice incrassata. Ad Beloniam igitur haec species pertinet, etiam 

 facie externa B. russulae similis, thallo sordide vel cinerascenti-albi- 

 cante magis continuo leviter ab ea differens. Ceterum genus Belonia 

 proxima est Porinae sect. Rhaphidisegestriae Vain. (Add. Lich. Ant., 

 1915, p. 200), sporis cum ea congruens. 



2. B. Fennica Vain. 



Adj. Lich. Lapp. II (1883) p. 196. 



Thallus tenuis aut sat tenuis, crustaceus, sat laevigatus, 

 subcontinuus aut partim dispersus, pallidus vel olivaceo- 

 albicans, hypothallo indistincto. Apothecia dispersa, verrucas 

 formantia subhemisphaericas, rarius subglobosas, 0.6 — 0.7 mm 

 latas, leviter inaequales aut sat laevigatas, basi praeruptas 

 aut raro levissime constrictas, parte inferiore thallo conco- 

 lores, vertice convexo aut leviter prominente, late fusco- 

 nigricante, amphithecio thallino sat crasso obducta, margine 

 ostiolari haud impresso, ostiolo sat parvo aut demum modice 

 dilatato, perithecio maxima parte albido. Sporae acieula- 

 res, septis transversis numerosis, long. O.045 — O.105, crass. 

 0.003 mm. 



