Acta Societatis pro Fauna et Flora Fennica, 49, N:o 2. 173 



thum (aut in speciebus exoticis ad Phycopeltidem aut Hetero- 

 thallum) pertinentia. 



Sect. 1. Sphaeromphale (Reichenb.) Vain. 



Corticolae saxicolaeve aut muscicolae. Gonidia a 

 Trentepohlia praedita. Perithecium amphithecio thallino 

 plus minus late obductum aut thallo immersum. Sporae 

 fusiformes oblongaeve, 3 — pluriseptatae. Gonidia a Trente- 

 pohlia (Tr. umbrina et Tr. iolithus) praedita. 



1. P. faginea (Schaer.) Arn. 



Lich. Frank. Jur. (Fl. 1884) p. 277, Lich. Munch. (1891) p. 122; 

 A. Smith Mon. Brit. Lich. II (1911) p. 337. Sagedia faginea Schaer. 

 Enum. Lich. Eur. (1850) p. 208. Vermcaria illinita Nyl. Coll. Lich. Gall. 

 Merid. (Nya Bot. Not. 1853) p. 10, Fl. 1864 p. 355, Lich. Lapp. Or. (1866) 

 p. 172, 189. Vermcaria chlorotica f. illinita Nyl. Prodr. Lich. Gall. (1857) 

 p. 433, Exp. Pyrenoc. (1858) p. 36. Sagedia illinita Koerb. Syst. Lich. 

 Germ. (1855) p. 366; Jatta Fl. It. Crypt. Lich. p. 891. Segestrella Koerb. 

 Par. Lich. (1865) p. 324. 



Exs. Zwackh Lich. Exs. (1850) n. 36, 36 bis, 45 (sec. Zwackh 

 Lich. Heidelb. p. 75). — Mass. Lich. It. Exs. (1856) n. 304 (sec. Arn.). 

 — Hepp Flecht. Eur. (1857) n. 464, (1860) n. 708. Koerb. Lich. Sel. 



Germ. VII (1861) n. 205, IX (1864) n. 261. 



Thallus tenuis, sat laevigatus, cinereo-glaucescens aut 

 albidus vel sordide albicans, hypothallo indistincto. Apo- 

 thecia crebra, semiimmersa, verrucas formantia hemisphae- 

 ricas aut conoideo-hemisphaericas, 0.3 — O.25 mm latas, basin 

 versus sensim dilatatas aut rarius sat praeruptas, amphi- 

 thecio thallino, thallo concolore aut paullo obscuriore (vulgo 

 sat late) tenuiter velatas, vertice plus minusve late (haud 

 abrupte) denudato et nigricante aut sordide obscurato, 

 opaco, nee impresso, nee umbonato, ostiolo minutissimo. 

 Perithecium vertice fusco-rufescens, inferne decoloratum. 

 „Sporae fusiformes, apicibus acutis aut altero apice obtuso, 

 long. O.027 — 0.048, crass. O.006 — O.oos mm, 7-septatae, loculis 

 sat aequalibus, membrana sat tenui, haud gelatinoso-induta" 

 (secund. annot. Nyl. in herb. suo). Gonidia a Trentepohlia 

 umbrina praedita. 



