Acta Societatis pro Fauna et Flora Fennica, 49, N:o 2. 145 



ramoso-connexae aut raro simplices. Sporae 8 — 4:nae, 

 demum obscuratae, vulgo ovoideae, 1-septatae, loculis 

 haud lenticularibus. 



1. M. scopularia (Nyl.) Th. Fr. 



Pointsfort. Skand. Vaxt. (1880) p. 105. Vermcaria scopularia Nyl. 

 Lien. Scand. (1861) p. 282. 



Thallus tenuis, crebre rimuloso-diffractus, sat laeviga- 

 tus, fusco-nigricans, opacus. Apothecia crebra, verrucas 

 formantia subhemisphaericas aut tantum leviter prominentes, 

 0.2 — 0.25 mm latas, thallo concolores, margine ostiolari haud 

 prominente, ostiolo O.020 mm lato, foveolato. Perithecium 

 fusconigrum, basi pallidum. Paraphyses parcae. Asci ven- 

 tricosi, in apice membrana bene incrassata. Sporae ovoideo- 

 oblongae, distichae aut tristichae, 1-septatae, long, vulgo 

 circ. 0.013—0.014, crass. O.005 — O.006 mm. Gonidia pleuro- 

 coccoidea. 



Distr. Ad saxa marina saepe inundata ad Kellahti in 



Satakunta (A. J. Malmgren). 



Proxima est Microtheliae Metzleri Lahm (Koerb. Par. Lich. 

 Germ. p. 398, Arn. Lich. Tirol X, 1873, p. 112), facie externa Pyre- 

 nopsidem et Verrucariam mauram in memorian revocans. Thallus 

 ex hyphis torulaeformibus, fuscis constans, cellulis subglobosis, O.005 

 mm crassis, bene constrictis. Apothecia opaca aut leviter nitida. 

 Nucleus albidus, leviter resinoso-guttulosus, jodo non reagens, 

 metaplasmate ascorum vinose rubente. Paraphyses long. O.022 — 

 O.035, crass. O.0015 mm, simplices, crebre aut sat crebre septatae, 

 haud constrictae. Asci ovoideo- aut oblongo-ventricosi, long. 

 O.035 — 0.050, crass. O.018 — O.024 mm. Sporae 8:nae, apicibus 

 rotundatis aut altero apice obtuso, septo in medio sporae, de- 

 mum leviter constrictae, primum decolores, demum fuscescentes, 

 membrana sat tenui, interdum strato gelatinoso tenui indutae. 

 Gonidia pleurococcoidea, globosa, diam. O.007 — O.013 mm, simpli- 

 cia aut saepe etiam glomerulosa (quare ad Trentepohliam perti- 

 nere non possunt). 



5. Polycoccum Saut. 



Koerb. Par. Lich. 5 Lief. (1865) p. 470. Didymosphaeria 4. „Flech- 

 ten bewohnende Arten" Wint. Rabenh. Krypt. Ascom. (1887) p. 430. 

 Didymosphaeria II. Endococcus Sacc. Syll. Fung. XVII (1895) p. 681, XXII 

 (1913) p. 176 (haud Endococcus Nyl.). 



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