108 Acta Societatis pro Fauna et Flora fennica, VII. 



lares aut pro parte fere monstichae, decolores, apicibus rotundatis 

 aut obtusis, membrana circ. 0,0 6— 0,005 millim. crassa, strato 

 exteriore paullo crassiore. Pycnoconidia „long. 0,0 2 3 — 0,oi3, crass. 

 0,0005 millim., recta" (Nyl., 1. a). 



Stirps 2. Leioplacae MiilL Arg. Pseudostramata subglobosa 

 aut hemisphaerica, bene evoluta, basi constricta aut dilatata. 

 Disci thallum fere aequantes aut leviter prominuli. 



Mill]. Arg., Lick. Beitr. (Fl. 1884) n. 735. 



5. P. tuberculifera Nyl., Lick. Nov.-Gran. (1863) p. 448 

 (mus. Paris.), Fl. 1869 p. 121; Krempelk., PI. 1876 p. 218; Mull. 

 Arg., Lick. Beitr. (Fl. 1884) n. 768. P. leioplacoides Mull. Arg., 

 Lick. Beitr. (Fl. 1881) n. 342. 



TJiallus mediocris aut sat tenuis, subcontinuus, leviter ver- 

 ruculoso-inaequalis aut sublaevigatus, albidus aut glaucescens, 

 neque KHO, nee Ca Gl 2 2 reagens. Pseud ostromata thallo con- 

 coloria, circ. 1 — 3 [ — 6] millim. lata, depresso-subglobosa, basi 

 vulgo demum plus minusve constricta, apice convexo aut rarius 

 leviter concaviusculo, verruculis osteolaribus sparsis, parvulis, 

 mamillari-prominentibus aut ostiolis haud prominentibus, pseudo- 

 stroma aequantibus aut rarius leviter impressis, vulgo apothecia 

 plura aut raro solitaria (1 — 10) continentia. Sporae 8:nae — 2:nae 

 aut solitariae, oblongae, long. circ. 0,0 6 5 — 0,18 0, crass. 0,0 2 6 — 

 0,0 40 millim., membrana demum intus transversim undulato-striata 

 costatave, halone nullo. 



Ad corticem arborum in Brasilia sat frequenter provenit. — 

 Medulla jodo non reagens, hyphis sat pachydermaticis, lumine 

 cellularum angusto instructis. Pseudostromata interdum sat con- 

 stanter apothecia solitaria continent (f. velloziae Wainio, ad Vel- 

 lozias in montibus Garassae in civ. Minarum proveniens, n. 1449), 

 strato corticali ex hyphis conglutinatis irregulariter contextis for- 

 mato obducta. Ostiola albida aut obscura [aut raro rubescentia]. 

 ParapJiyses ramoso-connexae, circ. 0,ooi5 — 0,ooi millim. crassae. 

 Asci cylindrici, jodo cacrulcscentes. Sporae monostichae, deco- 

 lores, apicibus obtusis aut rotundatis, saepe intus membrana 

 (endosporio) bene incrassata, exosporio sat leviter incrassato. 



6. P. leioplaca (Ach.) Schaer., Lick. Helv. Spio. (1823) p. 

 66; Tk. Fr., Lick. Scand. (1871) p. 316; Mull, Arg., Lick. Beitr. 



