Acta Societatis pro Fauna et Flora Fennica 49, N:o 2. 29 



prominentia. Perithecium lat. O.20 — O.25 (— O.03) mm, vertice 

 demum late denudato nigricanteque. Sporae „long. O.015 — 

 O.024, crass. O.007— O.010 mm" (sec. annot. Nyl.). 



Distr. Ad rupes graniticas littorales maris (etiam una 

 cum V. maura) in Somerikon-rantavuoret Hoglandiae (Vain.), 

 ad Hallviken prope Helsingforsiam (W. Nyl. „ V. margacea v. 

 riparia" sec. Nyl.), ad Vaha-Heikkila prope Aboam (A. Kull- 

 hem), in Alandia (Edvin Nylander). 



Var. ventosa Vain. 



Thallus sat tenuis, rimosus aut areolatus, obscure 

 cinereus vel cinereo-fuscescens, areolis contiguis et partim 

 dispersis, hypothallo tenui, nigricante, ad ambitum et inter 

 areolas evoluto. Apothecia prominentia. Perithecium lat. 

 O.20—O.25 mm, vertice demum late denudato nigricanteque. 

 Sporae long. O.018 — O.022, crass. O.009 — 010 mm. 



Distr. Supra rupes graniticas maritimas planas aut 

 meridiem versus declives abundanter in insula Traskkoplan 

 in par. Esbo Nylandiae (Vain.). 



Intermedia est inter var. primaham et var. internigrescen- 

 tem, a posteriore thallo crassiore, obscuriore, partim magis con- 

 tinue) differens. A var. scabrida et var. lepidioide thallo tenuiore, 

 nee subsquamuloso distinguitur. — Specimen in var. primariam 

 accedens in reg. betulina ad Kongas prope Mare Glaciale lectum 

 (Vain.), sporis long. O.012 — O.016, crass. O.007 — O.010 mm, peritheciis 

 late denudatis, O.20 — O.25 mm latis instructum est. 



Var. riparia (Nyl.) Vain. 



V. margacea f. riparia Nyl. Lich. Lapp. Or. (1866) p. 170. V. 

 aethiobola *riparia Stizenb. Ind. Lich. Hyperb. (1876) p. 52. V. riparia 

 Nyl. Enum. Lich. Fret. Behr. (1888) p. 16, 42, p. p. 



Exs. Fellm. Lich. Arct. (1866) n. 217 p. p. (in mus. Fenn.). 



Thallus sat tenuis, areolato-diffractus areolatusve, 

 areolis planis (aut rarius convexis), partim contiguis, partim 

 dispersis, impure albidis, parvis, hypothallo haud evoluto. 

 Apothecia prominentia. Perithecium lat. O.30 — 0.25 mm, vertice 

 late denudato nigricanteque. Sporae long. O.ou — O.022, crass. 

 O.006 — O.on mm. 



