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



Apotheciis immersis foveolasque in substrato formantibus 

 et vertice haud demum impresso a V. deversa differt. Gonidia 

 pleurococcoidea, globosa, diam. circ. O.012 mm, tantum simplicia 

 visa, membrana modice incrassata. Perithecium lat. O.25 — 0.3 mm, 

 lateribus rotundatis (in specimine Helsingforsiensi fuscofuligineum, 

 vertice paullo crassius, ostiolo •— 0. 050 mm lato). Periphyses evo- 

 lutae. Nucleus jodo roseus (etiam in specim. orig. V. integrellae 

 n. 3384 in herb. Nyl.). Paraphyses in gelatinam diffluxae, striis 

 indicatae. Asci oblongo-clavati, membrana gelatinosa. Sporae 

 8:nae, distichae, decolores, simplices, apicibus rotundatis obtusis- 

 ve, in Anzi 1. c. n. 364 sec. Anzi long-. O.0206 — O.0258, sec. Nyl. 

 O.018 — O.024, sec. Arn. (Lich. Tirol IV p. 652) O.024 — O.027 mm. 

 In specimine Anziano n. 3384 in herb. Nyl. thallus est endoli- 

 theus evanescensque, perithecium rubricoso-fuligineum, vertice 

 haud impresso, periphyses long. circ. O.015, crass. O.001 mm. 

 Conidia „cylindrica, recta, long. O.0035 — O.005, crass. O.001 mm 

 (sec. annot. Nyl. in specim. n. 3389 e Meudon). 



14. V. deversa Vain. (n. sp.). 



Thallus tenuis, subdispersus, albidus aut cinerascens, 

 aut evanescens, hypothallo indistincto. Apothecia partim 

 crebra, basi thallo immersa aut fere semiimmersa, verrucas 

 formantia hemisphaericas, O.25 — 0.3 mm latas, nigras, nudas. 

 Perithecium subglobosum, fuscescenti- aut subrubricoso- 

 fuligineum, integrum, totum aequaliter incrassatum aut ver- 

 tice crassiore, lateribus rotundatis, margine ostiolari haud 

 prominente, vertice subconvexo aut saepe demum distincte 

 foveolato-impresso aut fere tantum ostiolo foveolam sat 

 minutam formante. Gelatina hymenialis jodo rosea viola- 

 scensve (aut raro caerulescens). Sporae ellipsoideae oblon- 

 gaeve, long. O.015 — O.020, raro — O.024, crass. O.007— O.010 mm. 



Var. meiospora Vain. 



Sporae long. O.015 O.020 (rarius — O.024), crass. O.007- 

 O.013 mm. Apothecia vertice saepe demum impresso. 



Distr. In rupibus calcariis et talcaceis et ad cemen- 

 tum murorum crescit. Regio Aboensis: Kaukasalo et 

 Forby in par. Finby (Vain.). Nylandia: Juvas in pag. 

 Gesterby in Sibbo (Vain.). Nylandia: Degero prope Hel- 



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