156 E. A. Vainio, Pyrenocarpeae. 



0.i5 — O.io mm lato, pallido aut rarius obscurato. Paraphyses 

 numerosae, simplices. Asci subfusiformes oblongaeve. 

 Sporae 8:nae, submurales, septis transversis 5 — 7 („ — 9" 

 sec. Nyl. et Arn.), loculis 2 — 1 septo uno longitudinali 

 divisis, long. O.ois— O.025, crass. O.007 — O.012 mm, sec. Nyl. 

 „long. O.024—O.028, crass. O.oos— O.009 mm". Gonidia pleuro- 

 coccoidea. 



Distr. Ad corticem Salicis prope Triostroff in Lappo- 

 nia Ponojensi socia Didymellae fallacis et Placodii ferruginei 

 (N. I. Fellman). Ad corticem Salicis siccae in regione 

 betulina prope Kilpisena in Lapponia Enontekiensi (J. P. 

 Norrlin). 



Ostiolo saepe demura foveolato Gyalectarn congruellam in 

 memoriam revocans. Gonidia pleurococcoidea in specim. orig. 

 etiam Trentepohlia immixta (sed in Arn. Lich. Exs. n. 520 

 tantum pure pleurococcoidea). Nucleus albidus, haud resinoso- 

 guttulosus, jodo non reagens, metaplasmate rubescente. Para- 

 physes crass. O.001 mm. Asci long. O.060 — O.oso, crass. O.012 — 

 O.018 mm, in apice membrana primum sat bene incrassata, 

 demum attenuata. Sporae distichae, ovoideae aut fusiformi- vel 

 oblongo-ovoideae, apicibus obtusis aut rotundatis, jodo non rea- 

 gentes, membrana tenui, haud gelatinosa. In pluribus sporis 

 septa longitudinalia haud evoluta. Thallus et apothecia opaca. 



5. Th. modesta Nyl. 



Ess. Nouv. Class. Lich. (1854) p. 16, Prodr. Lich. Gall. (1857) p 

 438, Exp. Pyrenoc. (1858) p. 62; Arn. Lich. Frank. Jur. (Fl. 1885) p 

 266; Vain. Etud. Lich. Bres. II (1890) p. 215. Verrucaria modesta Nyl 

 Nya Bot. Notis. 1853 p. 16 (164), Lich. Paris (1896) p. 124; Hue Addend 

 II (1886) p. 289. Microglaena A. Sm. Mon. Brit. Lich. II (1911) p. 308 

 Jatta Fl. It. Crypt. II p. 847. Microglaena Wallrothiana Koerb. Syst 

 Lich. Germ. (1855) p. 389. Sphaeromphale Carrollii Mudd Man. Brit 

 Lich. (1861) p. 283, tab. 5 f. 115 (sec. A. Sm. 1. c, haud Nyl. in herb 

 suo). Verrucaria sericea var. Wallrothiana Garov. Tent. Lich. Longob. 

 IV (1868) p. 33, tab. X f. 9. 



Exs. Nyl. Herb. Lich. Par. I (1855) n. 97. — Arn. Lich. Exs. (1861) 

 n. 148. — Koerb. Lich. Sel. Germ. VII (1861) n. 209 et Oliv. Herb. Lich. 

 de l'Orn. V (1882) n. 249 (sec. Arn. 1. c). 



Thallus tenuis, subcontinuus aut diffractus, sat laevi- 

 gatus aut leviter verrucoso-inaequalis, albidus aut cinereo- 

 glaucescens, hypothallo nullo distincto. Apothecia crebra 



