202 E. A. Vainio, Pyrenocarpeae. 



fusconigrum, dimidiatum, basi extrorsum auguste mem- 



branaceo-dilatatum, margine ostiolari vulgo leviter conoideo- 



prominente, ostiolo parvo. Asci cylindrici membrana modice 



incrassata. Paraphyses numerosae, increbre ramoso-connexae. 



Sporae monostichae, ellipsoidae, 1-septatae, loculis aequali- 



bus, long. circ. O.oie — O.021, crass. O.009 — O.012 mm. 



Distr. Ad corticem Sorbi in Raseborg in Nylandia (Vain.). 



Praesertim apotheciis depressis, extrorsum membranaceo- 

 dilatatis ab A. gemmata differt. Thallus continuus, leviter nitidus. 

 Perithecium fusco-fuligineum (KHO subnigricans), basi deficiens. 

 Nucleus albidus, haud resinoso-guttulosus, jodo non reagens, 

 metaplasmate ascorum subrubescente. Asci long. O.oso — O.120, 

 crass. O.oh mm. Sporae 8:nae, decolores, apicibus rotundatis, 

 membrana modice incrassata, haud gelatinosa, extus creberrime 

 minutissimeque brevissime gibboso-exasperata. Gonidia ad Trente- 

 pohliam pertinentia, cellulis anguloso-subglobosis, O.008 — O.012 mm 

 latis, concatenatis, bene constrictis, membrana sat tenui. — 

 Specimina authent. Wallrothiana non vidi, quare determinatio 

 plantae Fennicae est incerta. 



Obs. A. conoidea (Fr.) Vain. (Verr. Fr. Lich. Eur. Ref. p. 432. 

 Leight. Lich. Great Brit. 3 ed. p. 460; *Verr. con. Nyl. Lich. Scand. p. 

 280; V. epipolaea Borr.. non Ach.; Acrocordia epip. A. Sm. Brit. Lich. 

 II p. 314), saxicola, A. gemmatae proxima, in Scandinavia proveniens, 

 in Fennia hucusque non est collecta. 



9. Didymella Sacc. 



Michelia I p. 377, Syll. Fung. I p. 545; Karst. Rev. Ascom. (Act. 

 Soc. F. et Fl. Fenn. II, 1885) p. 22, 60. 



Genus gonidiis destitutum, ad fungos pertinens. Sporae 

 8:nae, decolores, ovoideae aut ellipsoideae oblongaeve, 

 1-septatae. Paraphyses ramoso-connexae aut leviter ramo- 

 sae aut simplices, bene evolutae aut obsoletae vel in gelati- 

 nam diffluxae. Perithecium hemisphaericum aut rarius globo- 

 sum. Corticolae, caulicolae aut foliicolae. 



1. D. fallax (Nyl.) Vain. 



Lich. Cauc. (1899) p. 342. Verrucaria epidermidis var. fallax Nyl. 

 Bot. Not. 1852 p. 178, Lich. Scand. (1861) p. 281. V. fallax Nyl. Fl. 1872 

 p. 363; Vain. Adj. Lich. Lapp. II (1883) p. 190. Artliopyrenia Arn. Lich. 

 Tirol XI (1873) p. 508, Lich. Frank. Jur. ( Fl. 1885) p. 270. V. analepta 



