212 E. A. Vainio, Pyrenocarpeae. 



aut fere oblongae. Asci ventricosi, long. circ. O.050, crass. O.ou 

 mm, membrana saepe tenuiore, quam in D. punctiformi. 



Obs. 1. Verrucaria rhyponta var. rhypontella Nyl., Fl. 1867 p. 

 374, ad Fr. Lich. Suec. Exs. n. 274 in herb. Nyl. asservatum spectans, 

 „sporis 1-septatis, O.ou — O.on mm longis, O.oo^ — O.oos mm crassis" de- 

 scripta, at secundum annotationes ejus sporis etiam „0.oi8— O.020 mm 

 longis" observata, ad D. pyrenastreltam pertinet, nee ab ea differt 

 „V. rhyponta v. rhypontella" in Norrl. Bidr. Sydostr. Tav. Fl. (1870) p. 

 195 (ad Pyrurn communem in Kaila in Asikkala lecta). V. rhyponta 

 "rhypontella Nyl." in Norrl. Ber. Torn. Lappm. (1873) p. 346 (adramos 

 Pruni padi in Alkkula collecta) est Metasphaeria rhyponta var. sub- 

 macalans Vain., mycelio obscurato partim bene evoluto in M. rhypontam 

 typicam transiens, sporis 3-septatis, long. O.016, crass. O.oos mm, ascis 

 ventricosis, membrana modice incrassata, paraphysibus parcis, longi- 

 tudine variabilibus, crass. O.cois mm, peritheciis fuscis, circ. O.260 mm 

 latis, hyphis fuscis excrescentibus O.005 — O.006 mm latis, crebre constricte 

 articulatis. 



10. Cercidospora Koerb. 



Parerg. Lich. 5 Lief. (1865) p. 465. Didymella sect. Didymellopsis 

 Sacc. Syll. Fung. XVII (1905) p. 657. Didymosphaeria Zopf Unters. 

 Par. Krankh. Flecht. I (Nova Acta 70, Halle 1897) p. 168. 



Genus gonidiis destitutum, ad fungos pertinens. Sporae 

 decolores, fusiformes aut ovoideo-fusiformes aut altero apice 

 caudatae, 1-septatae. Paraphyses bene evolutae, simplices 

 aut (sec. Zopf 1. c.) ramoso-connexae. Perithecium globo- 

 sum. „Membranae nuclei jodo non reagentes" (sec. Zopf 

 1. c. p. 174). Parasitae lichenum. 



1. C. epipolytropa (Mudd) Arn. 



Fl. 1874 p. 154, tab. 2 f. 24, Lich. Tirol XXI (1880) p. 154, XXIII 

 (1887) p. 115, XXX (1897) p. 43, Lich. Munch. (1891) p. 131; Bachm. Ueb. 

 Flechtenfarbst. (Pringsh. Jahrb. XXI, 1890) p. 6, 59. Thelidium epi- 

 polytropum Mudd Man. Brit. Lich. (1861) p. 298. Verrucaria epipolytropa 

 Cromb. Lich. Brit. (1870) p. 121; Nyl. Obs. Lich. Pyr. (Fl. 1872) p. 13, 

 (Fl. 1873) p. 41, 61, Lich. Pyr. Or. (1891) p. 37, 68, 86; Hue Addend. 

 II (1888) p. 302; Linds. Obs. Lich. Brown West Greenl. (Trans. L. Soc. 

 Lond. XVII, 1871) p. 366, tab. 50 f. 23 a, b, f. 26. Pharcidia Arn. Fl. 

 1870 p. 236, Lich. Tirol VI (1871) p. 1146. Didymosphaeria Wint. in 

 Rabenh. Krypt.-Fl. Ascom. 2 Aufl. (1887) p. 432. Didymella Sacc. 

 Syll. Fung. IX (1891) p. 671; Keissler Einig. Flechtenpar. (Osterr. Bot. 

 Zeitschr. 1910) p. 60; Vouaux Bull. Soc. Myc. Fr. 1913 p. 87 (excl. 



