80 Acta Societatis pro Fauna et Flora fennica, YL 



II. Sporulae catenulata. 



A. Sporulse filiformes, hyalinse . . . Pseudocenangium. 



B. Sporulse oblongatge, 3-septat8e, de- 

 mum fuligineae Tcenioj^Jiora. 



LI. Oncosporella Karst. Symb. ad Myc. Fenn. XXI, p. 105. 



Pyrenia emmpenti-superficialia, glabra vel glabrescentia, pri- 

 mitus clausa, subsphseroidea, mox ore lato aperta, fibroso-contexta, 

 atra. Sporulse bacillares vel filiformes, pluriguttulatss vel spmne 

 pluriseptatae, hyalinse, plerumqve in globulum deniqve expulsae, in 

 sporophoris teniiissimis acrogenee. Genus Oncos])orce Kalehbr. et 

 Excipulinw Sacc. affine, ab ilia pyreniis spheeriiformibus sporu- 

 lisqve spurie septatis, a hac insuper setulis sporularum deficienti- 

 bus recedens. 



1. One. punctiformis Karst. Symb. ad myc. Fenn. XXI, p. 105. 



Pyrenia sparsa vel laxe gregaria, erumpenti-superficialia, sub- 

 rotundato-depressa, glabra, contextu fibrose, fuligineo, fusco-atra, 

 diam. 0,i — 0,2 mm.. Sporulge bacillares vel filiformes, plus minus 

 curvatse, ssepissime falcatse, pluriguttulatse vel spurie pluriseptatae, 

 hyalinse, longit. 27—45 mmm., crassit. 3—4 mmm., globulo per- 

 sistente pallido. 



Hab. ad lignum vetustum Fojpuli tremidce in agro Mustia- 

 lensi, m. Septembri 1870. 



LII. Pilidium Kunz. Myk. Heft. II, p. 92; Sacc. Syll III, p. 689. 



Pyrenia erumpentia, discoideo-scutellata, in^qvalia, membra- 

 nacea, atrofuliginea, deniqve margine sublaciniata, disco palli- 

 diore. Sporulae oblongatse vel fusoideo-falcatse, 2 — pluriseptatge, 

 hyalinse. 



1. P. fuliginosum (Fr.) Auersw. (Hedw. 1866, p. 191). 



Syn. Cenangium fuliginosum Fr. Elench. II, p. 23 pr. p. 

 Filidium carbonaceum (Lib.) Berk, et Br. Ann. Nat. Hist. n. 442. 

 Scleroderris fuliginosa (Fr.) f. pycnidica Karst. Myc. Fenn. I, p. 216. 



Pyrenia sphseriiformia, forma varia, irregularia, ut plurimum 

 obovoidea vel subsphseroidea, sessilia vel subsessilia, laevia, atro- 

 brunnea- vel nigrescentia, plus minus emergentia, in plagas latas 

 aggregatas subiculoqve late effuso, ambiente innata, tandem de- 

 hiscentia, latit. 0,5 — 1 mm. Sporulee fusoideo-bacillares, subrectse 



