Acta Societatis pro Fauna et Flora Fennica, 49, N:o 2. 69 



Tavastia austr.: Tammela (A. Kullhem). Savonia austr. : 

 Savonlinna (Vain.). Ostrobotnia Kajanensis: Kajaani (A. J. 

 Malmgren). 



Gonidia pleurococcoidea, globosa, simplicia diam. O.oio — 

 O.006 mm, saepe etiam 2— 4-cellulosa, membrana sat tenui. 

 Perithecium vertice rufescente aut fuscescente (in lamina tenui), 

 KHO non reagente. Periphyses long. circ. O.025, crass. O.003 mm, 

 parce septatae. Paraphyses in gelatinam diffluxae. Asci oblongi 

 aut clavati, long. O.045 — O.055, crass, circ. O.016 mm, membrana 

 gelatinosa, leviter incrassata. Thallus superne partim strato cor- 

 ticali O.oio mm crasso, plectenparenchymatico, cavitatibus cellula- 

 rum O.003 — O.007 mm latis, membranis tenuibus aut sat tenuibus. 

 Nucleus jodo lutescens. 



31. V. polystictoides Vain. (n. sp.). 



Thallus sat crassus aut modice incrassatus, areolatus, 

 areolis 2—0.3 mm latis, angulosis, contiguis, vulgo laevigatis, 

 raro leviter verruculoso-inaequalibus, cinereo-albidus aut 

 lurido- vel glauco-cinerascens, opacus, hypothallo haud 

 evoluto. Apothecia crebra, saepe plura in eadem areola, 

 thallo immersa, vertice perithecii nigro denudato, parum 

 aut leviter prominente, O.i — O.ie mm lato. Perithecium glo- 

 bosum, vertice fuscescente, ceterum albidum, latere rotun- 

 dato, vertice convexo, margine ostiolari haud prominente, 

 ostiolo minutissimo. Sporae ellipsoideae aut oblongae, long, 

 circ. ,,0.oi6 — O.018, crass. O.007 — O.008 mm" (sec. Nyl.). 



Distr. Ad cementum muri in castello Savonlinna in 

 Savonia austr. (O. Carlenius). 



Forsan est variatio V. virentis Nyl., thallo vulgo laevigato 

 et apotheciis crebrioribus ab ea recedens. V. viridula Ach. 

 apotheciis majoribus, increbrioribus et perithecio inferne tenuiter 

 nigricante ab ea distinguitur (conf. Leight. Brit. Angioc. Lich. 

 p. 23, tab. VII f. 3). A Nyl. in herb, suo (n. 2678) et in mus. 

 Fenn. planta nostra nominata est „V. polysticta Borr.", quae 

 hypothallo nigro bene evoluto ab ea differt. V. glaucina Ach., 

 quae a pluribus auctoribus cum V. polysticta commixta est, sec. 

 herb. Ach. hypothallo indistincto ab ea distinguitur et thallo 

 crassiore, continuo, rimoso et habitu alio a V. polystictoide 

 recedit. — In V. polystictoide thallus crass, circ. O.280 mm, 

 superne strato corticali O.015 — O.025 mm crasso obductus. 



