108 E. A. Vainio, Pyrenocarpeae. 



Perithecium ad basin extus strato tenui fuscescente. Nucleus 

 albidus, jodo violascens aut ad basin caerulescens. Asci ventricosi 

 aut clavati. Paraphyses in gelatinam dissolutae, cavitates striis 

 indicatae. Sporae distichae, ellipsoideae, apicibus rotundatis, 

 pauciseptatae, septis transversis saepe 3, septis longitudinalibus 

 paucis, cellulis demum circ. 8 — 12, membrana tenui, haud gela- 

 tinosa. Gonidia pleurococcoidea, saepe divisa glomerulosaque, 

 membrana modice incrassata. - 



Obs. A Polyblastia intermedia Th. Fr. thallo obscuro et apo- 

 theciis adnatis haec species differt. P. Forana Anzi sec. specim. orig. 

 thallo albido, evanescente, apotheciis in substrato calcario semiimmer- 

 sis et cellulis sporarum magis numerosis, ab ea recedit. P. fusco- 

 argillacea Anzi sec. Lich. Rar. Langob. Exs. IX (1863) p. 368 autonoma 

 est species, thallo sat tenui, subcontinuo rimulosove, sordide albido, 

 apotheciis crebris, adnatis, perithecio dimidiato, sporis majoribus, O.027 — 

 O.043 mm longis, circ. O.ou— O.022 mm crassis, in cellulas numerosas divisis 

 dignota. P. albida Arm, Fl. 1858 p. 551, Lich. Frank. Jur. (Fl. 1885) p. 

 263, Lich. Exs. (1858) n. 28, (1875) n. 28 b, apotheciis fossas in substrato 

 calcario formantibus et sporis (sec. Th. Fr. Polybl. Scand. p. 24) ,,0.021 — 

 O.030 mm longis, O.012 — O.015 mm crassis" (sec. Nyl., „long. — O.040, crass. 

 — 0.021 mm") ab his distinguitur et sec. annot. Nyl. in herb, suo 

 (n. 2012) conidiis filiformibus, arcuatis, long. O.009— O.010, crass. O.0005 — 

 O.oooe mm instructa est. 



12. P. peminosa (Nyl.) Vain. 



Verrucaria peminosa Nyl. Lich. Lapp. Or. (1866) p. 170. 



Exs. Lojka Lich. Hung. Ill (1882) n. 107. 



Thallus sat crassus aut modice incrassatus, rimoso- 

 diffractus aut sat continuus, laevigatus, cinereus aut ob- 

 scure cinerascens, opacus, hypothallo indistincto. Apothecia 

 sat crebra, thallo immersa, vertice nigro, leviter prominente, 

 circ. O.25 — 0.2 mm lato, opaco, margine ostiolari haud aut 

 leviter prominente, ostiolo saepe leviter foveolato et modice 

 dilatato aut parvo. Perithecium globosum, fuscum, integrum, 

 circ. O.23 — O.25 mm latum. Sporae 8:nae, „decolores aut 

 pallidae, diu simplices, saepe demum septis transversis 3, 

 raro „loculo 1 (aut 2) septo uno oblique longitudinali diviso" 

 (sec. annot. Nyl.), long. ,,0.025 — O.034 mm" (secund. Nyl.), crass. 

 O.010 — O.016 mm. 



