g4 Acta Societatis pro Fauna et Flora fennica, YI. 



Ceratostonia piliferum d cainllatum Sacc. Syll. I, p. 219. 



Ceratostomella pilifera f. 3. cainllata Wint. Pilz. p. 252. 



Pyrenia gregaria, emergenti-nuda, subsphseroidea vel ovoi- 

 dea, glabra, atra, minima, rostro capillar! , longissimo, curvato. 

 Sporulse ellipsoidese, hyalinse, longit. 8 mmm., crassit. 4 mmm. 



Hab. supra hymenium Fhellini igniarii in Fennia, verisimi- 

 liter tola. 



9. Sph. Isevirostris (Karst.) Berl. et Vogl. (Sacc. Syll. Addit. 

 I, p. 316). 



Syn. Eynclioi)lioma Icevirostris Karst. (Hedw. 1884 p. 85); 

 Symb. ad Myc. Fenn. XVI, p. 154. 



Pyrenia superficialia, sparsa vel gregaria, sphseroidea vel 

 subovoideo-sphaeroidea, fragilia, rugulosa, atra, opaca, rostro cy- 

 lindraceo, flexuoso, Isevi, pyrenio duplo vel qvadruplo longiore, 

 latit. circiter 0,4 mm. Sporulse ellipsoidese vel oblongatse, rectse 

 vel leniter curvulse, simplices, longit. 4 — 6 mmm., crassit. 2 mmm. 



Hab. supra lignum vetustum Pojmli tremulce in regione Mus- 

 tialensi, m. Octobri. 



10. Sph. nigrificans Karst. Symb. ad Myc Fenn. XXIV 

 (1887), p. 17. 



Pyrenia sparsa, erumpenti-superficialia, macula ambiente in- 

 determinata nigricante insidentia, irregularia, rotundato-depressa, 

 varie compressa vel inseqvalia, recentia olivascentia, mollia, sicca 

 atra, nitidula, rostro cylindraceo, diametrum pyrenii nonnumqvam 

 seqvante instructa, 0,3 — 0,4 mm. lata. Sporulse oblongatse, 

 utrinqve obtusse, rectee, ssepe guttulis 2 minutis apicalibus prseditae, 

 hyalinse, longit. 6 — 9 mmm., crassit. 2 — 3 mmm. 



Hab. in petiolis foliorum putrescentium Armoracice rusticance 

 in horto Mustialensi, m. Sept. 1887. 



XXXVII. Chsetophoma Cook, in Grev. Ill, p. 25. Sacc. Syll. 

 Ill, p. 199. 



Pyrenia superficialia, intra hyphas intricatas plerumqve ni- 

 dulantia, membranacea, subsphseroidea, atra vel brunnea, minu- 

 tissima. Sporulse saepe ovales vel ellipsoidese, continuae, hyalinse, 

 minimse. 



1. Ch. fusca Karst. (Hedw. 1884, p. 60). Sacc. Syll. Ill, p. 200. 



Subiculum late effusum, fuscum. Pyrenia subiculo leviter 



