176 E. A. Vainio, Lecideales. 



Paraphyses simplices, crass. O.ooi mm, apice subfuligineo-clavatae et 

 crass. 0.002 0.005 mm. Sporae rectiusculae, apice inferiore sensim at- 

 tenuate, altero apice vulgo obtuso, long. ,,0.053—0.075" (observante Nyl.), 

 crass. 0.003—0.0045 mm (secundum specim. orig. n. 17070 in herb. Nyl., 

 ad Vire in Gallia a Lenormand lectum). — Apotheciis tenuioribus, 

 magis adnatis, paraphysibus apice crassioribus et hypothecio magis co- 

 lorato a B. subacerina differt, sed non est autonoma species. Specimina 

 intermedia, hypothecio instructa ad marginem dilute rufescente rubri- 

 cosove, potius ad B. subacerinam pertinentia et p. 174 indicata, in Vihti 

 (W. Nyl.), Tiirismaa (Norrl.), Uusikirkko (Kairamo) et Karelia Olonets. 

 (Elfv.) collecta sunt. 



14. *B. atrogrisea (Hepp) Vain. 



Biatora atrogrisea Hepp Flecht. Eur. (1853) n. 26 (Lecidea Del. in 

 Hepp Syst. Samml., 1857, n. 222). Secoliga Stizenb. Krit. Bem. Lee. 

 Nadelf. Sp. (1863) p. 62 p. min. p. 



Thallus sat tenuis aut tenuis, leviter verrucoso-inae- 

 qualis, albido- aut cinereo-glaucescens. Apothecia majuscula 

 aut mediocria, atra, elevata aut adpressa, sessilia, disco 

 piano aut demum leviter convexo, margine sat tenui, sub- 

 persistente. Hypothecium superne pallidum, in limite peri- 

 thecii rubricosum, KHO non reagens, inferne decoloratum. 

 Hymenium crassum. Epithecium nigricanti-fuligineum, KHO 

 obscure subolivaceo-fuscescens (baud purpureum). Peri- 

 thecium extus rubricosum (KHO non reagens), intus deco- 

 loratum aut in margine dilute rubricosum. Sporae acicula- 

 res, „long. O.oe? — 0.o36 mm" (ex Hepp 1. c. n. 26), crass. 

 0.003 mm. 



Distr. Specimina n. 26, supra citata et hie descripta, 

 ad corticem Coryli prope Tigurum in Helvetia ab Hepp 

 collecta sunt (Syst. Samml. n. 222 a me non visus). — 

 Planta huic multum congruens ad corticem Populi prope 

 Kuivajarvi in Tammela Tavastiae austr. ab A. Kullhem lecta 

 est. 



Hypothallus indistinctus. Apothecia partim crebra, lat. O.9 — 

 0.4 mm, basi leviter constricta, late adnata, crass, circ. O.290 mm, 

 haud pruinosa, margine discum baud superante. Perithecium ex 

 hyphis formatum pachydermaticis, radiantibus, cavitatibus an- 

 gustis, oblongo-elongatis, in superficie perithecii passim parce 



