56 E. A. Vainio, Pyrenocarpeae. 



areolis thalli majoribus, 1.5 — 0.5 mm latis, modice incrassatis aut 

 sat crassis instructa. Distributio supra indicata. 



F. pauperior Vain., thallo tenuissimo, disperso, aut sat 

 evanescente. In latere rupis dolomiticae in Kaukasalo in Finby 

 una cum f. rupicola (Mass.). Sporae long. O.oie— O.020, crass. 



O.007 — O.012 mm. Periphyses long. circ. O.040 mm, 2 — 3-septatae, 

 haud gelatinosae. 



F. microplaca Vain., in saxis calcareis ad Huukki in Kolari 

 in Lapponia Kemensi collecta {„V. nigrescens" Nyl. in Norrl. 

 Beriitt. Torn. Lappm., 1873, p. 345), areolis thalli fuscis, O.35— 

 0.2 mm latis, subtus nigris, sporis „long. O.ois— O.023, crass. 

 O.010- O.011 mm", ad V. aethiobolam var. cotaleptoidem NyL 

 accedens. 



20. V. mauroides Vain. 



Nyl. in Hulting Dalsl. Lafv. (1900) p. 20, 85, n. 9 sec. n. 2662 in 

 herb. Nyl. (Schaer. Lich. Helv. Spic. VI, 1836, p. 335, Enum. Lich. Eur.. 

 1850, p. 215; Koerb. Syst. Lich. Germ., 1855, p. 348; A. Smith Mon. 

 Brit. Lich., 1911, p. 286). Verrucaria umbrina Leight. Brit. Angioc. Lich. 

 (1851) p. 52, tab. XXIII f. 2, ut videtur (haud Ach.). 



Thallus tenuissimus, dispersus, fuscescens, pallescens, 

 cinerascens aut albidus, aut evanescens, hypothallo indistincto. 

 Apothecia crebra, interdum parce confluentia, verrucas 

 formantia 0.3— 0.7 mm latas, late conoideas aut conoideo- 

 hemisphaericas, nigricantes, nudas. Perithecium substrato 

 adnatum, fuligineum, integrum, latere attenuato-producto, 

 margine ostiolari vulgo leviter prominente aut conoideo, 

 ostiolo parvo, haud foveolato. Sporae ellipsoideae oblon- 

 gaeve, long. „0.oi5— O.023, crass. O.007— O.010 mm" (sec. annot. 

 Nyl. in herb. suo). 



Var. depauperata Vain. Thallus parum distinctus, subfu- 

 scescens aut cinerascens, aut evanescens. Perithecium latere 

 distinctius attenuato-productum. 



Distr. Ad saxa granitica, gneissacea, calcaria, cet. Alandia: 

 Grondal (Husklint) in Geta (K. Linkola). Regio Aboensis: Meri- 

 masku (P. A. Karsten). Tavastia austr. : Tiirismaa in Hollola 

 (Vain.), Kangasjiirvi in Luhanka (Vain.). Savonia austr.: 

 Savonlinna (O. Carlenius). Karelia Ladogensis: Kirjavalahti 

 (J. P. Norrlin). Savonia bur.: Neulaniemi prope Kuopio (K. 

 Linkola). 



