Acta Societatis pro Fauna et Flora Fennica, 49, N:o 2. 169 



ostiolo parvo, haud foveolato. Perithecium fuligineo- aut 



rufescenti-rubricosum, integrum, amphithecio thallino nullo 



obductum, basi thallo immersum. Paraphyses numerosae, 



simplices. Asci vulgo subcylindrici. Sporae oblongae, 



3-septatae, „long. O.on — O.ois, crass. O.004 — O.006 mm" (sec. 



Nyl.). Gonidia a Trentepohlia iolitho praedita. 



Distr. Supra muscos destructos et vigentes (Hypnum 



cupressiforme) in rupe ad Valkeamaki in Karelia Onegensi 



(Th. Simming) una cum Gyalecta rubra. 



Perithecium KHO non reagens. Nucleus albidus (roseolum 

 observante Arn.), haud resinoso-guttulosus, jodo dilute caeru- 

 lescens (aut demum leviter vinose rubens vel vinose fulvescens 

 sec. Nyl. et Arn.). Periphyses (anaphyses) evolutae (sec. Nyl.). 

 Paraphyses crass. O.0015 mm, increbre septatae, gelatinam firmam, 

 in KHO laxam percurrentes. Asci long. circ. O.160, crass. O.ou — 

 O.020 mm, membrana sat tenui, molli. Sporae numerosissimae, 

 decolores, oblongae, rectae, apicibus obtusis aut rarius rotundatis, 

 primum simplices et 1-septatae, demum 3-septatae, loculis aeque 

 longis, saepe constrictae, membrana tenui, haud gelatinosa. 

 Gonidia cellulis anguloso-subglobosis globosisve, concatenatis 

 aut solitariis, O.030 — O.026 ( — O.014) mm crassis, membrana in- 

 crassata. 



2. Th. umbratula Nyl. 



Fl. 1875 p. 106; Norrl. Symb. Fl. Ladog.-Kar. (1878) p. 31; Hue 

 Addend. II (1888) p. 399. 



Exs. Norrl. et Nyl. Herb. Lich. Fenn. cont. (1921) n. 799. 



Thallus sat tenuis, verruculoso-inaequalis, glauco- 

 cinerascens, diffractus. Apothecia sat sparsa, verrucas 

 formantia submastoideo-hemisphaericas, 0.3 — O.2 mm latas, 

 nigras, opacas, laevigatas, basi haud praeruptas, thallo 

 semiimmersa, margine ostiolari leviter prominente, ostiolo 

 parvo, haud foveolato. Perithecium parte exteriore fuli- 

 gineo- aut rufescenti-rubricosum, integrum, basi thallo 

 immersum aut fere semiimmersum, amphithecio thallino 

 nullo obductum. Paraphyses numerosae, simplices. Asci 

 subclavati. Sporae oblongae, 3-septatae, long. O.013— O.oie, 

 crass. O.005 — O.ooe mm, sec. annot. Nyl. „long. O.012 — O.ois, 

 crass. O.005 — O.007 mm". Gonidia a Trentepohlia iolitho 

 praedita. 



