Acta Societatis pro Fauna et Flora Fennica, 49, N:o 2. 213 



var.)- Arthopyrenia Oliv. Par. Lich. Fr. p. 62. Cyrtidula Jatta Syll. 

 Lich. It. (1900) p. 496, Fl. It. Crypt. Lich. (1911) p. 907. 



Exs. Mudd Lich. Brit. Exs. Ill (1861) n. 287. — Arn. Lich. Exs. 

 (1884) n. 1075 b, (1888) n. 1410. 



Mycelium in substratum penetrans. Apothecia dispersa 

 aut aggregata, primum immersa, demum saepe leviter emer- 

 gentia, nigra aut caeruleo-nigricantia, lat. circ. O.i mm (— O.25 

 mm sec. Vouaux 1. c). Perithecium globosum, sordide 

 aeruginosum aut subolivaceum fuscescensve, aut (sec. pinct. 

 Nylandri in herb, suo) inferne albidum, margine ostiolari 

 haud prominente. Asci oblongi aut subcylindrici. Sporae 

 subfusiformes, apicibus obtusis aut acutis, membrana tenui, 

 „long. 0.013—0.022, crass. O.0035— O.ooe mm" (sec. Vouaux 

 1. c. p. 88). 



Distr. In hymenio et thallo Lecanorae polytropae 

 (Ehrh.) Th. Fr. ad saxum in Merimasku in Reg. Aboensi 

 (P. A. Karsten, n. 454 in herb. Nyl.). 



Apothecia punctis caerulescentibus nigrisve indicata. Mycelium 

 sec. Bachm. 1. c. hyphis septatis, aeruginosis (sicut etiam peri- 

 thecium), HNO3 vinose rubescentibus. Asci long. circ. O.040 

 (0.054—0.090 mm sec. Vouaux), crass. O.011 — O.012 mm, membrana 

 sat tenui. Paraphyses sat numerosae, simplices, crass. O.001 — O.0012 

 mm, ascis longiores. Periphyses haud evolutae. Sec. Vouaux 

 1. c. „perithecium plectenparenchymaticum, cellulis polyedricis, 

 lat. O.003 — O.004 mm, ostiolo leviter depresso, membranis ascorum 

 jodo non reagentibus, sporis 4:nis — 8:nis". Sec. annot. et pinct. 

 Nylandri in sched. speciminis Fennici „perithecium globosum, 

 caerulescens integrumque aut parte inferiore albidum, sporae 

 long. O.016—O.018, crass. 0. 005— O.ooe mm, apicibus sat obtusis, 

 septo mediano", in Exp. Pyrenoc. p. 59 „conidia bacillaria, recta, 

 long. O.004, crass. O.001 mm". 



Subtrib. 12. Hyalomonomeres Vain. 



Thallus crustaceus, gonidia continens, aut e mycelio 



gonidiis destituto constans vel thallum alienum gonidiosum 



insidens. Apothecia recta, simplicia, ostiolo mediano in- 



structa. Paraphyses evolutae. Sporae oblongae ellipsoideaeve 



aut subovoideae, simplices, decolores. 



Subtrib. Haplosporae Vain, sporis obscuratis ab hac tribu differt. 

 Ad eas pertinent Haplopyrenula Mull. Arg., Rosellinia De Not. et 



