



Acta Societatis pro Fauna et Flora Fennica, 49, N:o 2. 127 



Distr. Ad saxa quartzosa in Vihti in Regione Aboensi 

 (W. Nylander). 



Gonidia pleurococcoidea, globosa, simplicia, diam. 0.006 — 

 O.008 mm, aut 2-cellulosa (4-cellulosa et glomerulosa a Stahl 

 observata). Nucleus jodo roseus. Periphyses long. circ. O.015, 

 crass. O.015 mm, parce septatae. Asci clavati, membrana gelati- 

 nosa. Paraphyses in gelatinam diffluxae, striis indicatae. Sporae 

 8:nae, distichae, decolores, apicibus rotundatis aut obtusis, guttu- 

 losae, quare a Nyl. „fere murali-divisae" descriptae, at etiam 

 observante Th. Fr. revera uniseptatae et simplices. Ostiolum 

 perithecii circ. O.040 mm. Perithecia opaca. 



6. Th. olivaceonitens Vain. (n. sp.). 



Thallus tenuissimus, continuus, laevigatus, olivaceus, 

 nitidus, hypothallo indistincto. Apothecia verrucas formantia 

 hemisphaericas, O.190— O.ieo mm latas, nigras, nudas, apice 

 convexas, ostiolo minutissimo, haud foveolato. Perithecium 

 basi decoloratum, ceterum fuligineum. Sporae oblongae aut 

 ovoideo-oblongae, 1 -septatae, long. O.ou— O.ois, crass. O.005 — 

 O.007 mm. 



Distr. In rupe gneissacea umbrosa ad Paivarinne prope 

 Kuopio in Savonia bor. (K. Linkola). 



Thallo a Th. aethioboloide Nyl. differt. Gonidia pleurococ- 

 coidea, globosa, simplicia, diam. O.006 — O.oos mm, aut 2 — 4-cellu- 

 losa. Nucleus parce resinoso-guttulosus, jodo roseus. Perithecium 

 hemisphaericum, ostiolo O.020 mm. Periphyses long. circ. O.015, 

 crass. O.0015 — O.002 mm, parce septatae. Asci clavati aut ventri- 

 cosi, long. circ. O.032, crass. O.ou mm, membrana gelatinosa. 

 Paraphyses in gelatinam diffluxae, striis parcis indicatae. Sporae 

 8:nae, distichae, decolores, vulgo altero apice obtuso, altero ro- 

 tundato, guttulosae, primum simplices, dein distincte 1-septatae. 

 Apothecia nitida aut sat opaca. 



7. Th. incinctum Vain. 



Verrucaria pyrenophora var. incincta Vain. Adj. Lich. Lapp. II 

 (1883) p. 170. Th. pyrenophorum I. genuinum v. incinctum Zschacke 

 Hedwigia LXII, 1920, p. 127. 



Thallus modice incrassatus, subcontinuus, rimulosus, 

 sat laevigatus, albido-cinerascens, linea hypothallina ob- 



