160 E. A. Vainio, Lecideales. 



disco nigro. Hypothecium superne dilute aut partim intense sordide 

 fuscescens aut subrubricoso-fuscescens aut partim sordide pallidum, 

 interne decoloratum. Hymenium superius aeruginosum. Perithecium 

 in margine aeruginosum, KHO non reagens. Sporae sat longae aut 

 mediocres, vulgo pluri-septatae. Corticola. 



Distr. Ad corticem Juniperi, Populi, Salicis, Quercus et in 

 trunco Betulae. Ab.: Hannula in Askainen (K. Linkola). N.: Smeds 

 in Kyrkslatt (M. Brenner). Ka.: Luurinsaari in Kakki (C. E. Boldt). 

 OKaj.: Hossa in Kianta (Vain.). Lin.: Ruoptainvaara (Vain.). 



Hymenium crass. O.055 — O.050 mm. Hymenium superius aerugi- 

 nosum aut aeruginoso-fuligineum, nee KHO, nee HNO3 reagens. 

 Perithecium in margine aeruginoso-fuligineum aut dilute aerugino- 

 sum aut extus decoloratum, inferne decoloratum aut intus aerugino- 

 sum. Sporae bacillares, 3— 7-septatae, long. O.020— O.037, crass. O.ooio— 

 0.0035 mm. 



Var. chlorocheiloides Vain. 



Thallus verrucoso-inaequalis aut verruculosus, sordide albicans 

 aut cinereo-glaucescens, sat tenuis aut evanescens. Apothecia sat 

 parva aut mediocria, basi constricta, adpressa, disco atro, vulgo piano, 

 margine tenui, atro, persistente. Hypothecium parte superiore sub- 

 violaceum fuscescensve. Hymenium sat tenue, superne aeruginosum 

 et KHO non reagens. Perithecium in margine subaeruginosum, KHO 

 sordide violascens. Sporae vulgo bacillares, vulgo longitudine medio- 

 cres, septis paucis aut numerosis. 



Distr. Ad corticem Juniperi ad Vaania in Hollola et ad corticem 

 Sorbi prope Pohjola in Korpilahti in Ta. (Vain.). 



A L. affini (Zwackh) var. chlorocheila reactione perithecii differt. 

 — Hypothallus indistinctus. Apothecia crebra aut sat crebra, lat. O.3 — 1 

 mm, crass. O.2 — O.21 mm, nuda, disco opaco, piano aut raro convexo, 

 margine tenui, atro, saepe leviter nitido, discum vulgo baud superante. 

 Hypothecium superius violaceo-rubescens aut (in specimine e Pohjola) 

 dilute fuscescens, KHO non reagens, subplectenparenchymaticum, cel- 

 lulis in seriebus horizontalibus, cavitatibus ellipsoideis aut subglobosis, 

 0.0015 — 0.002 ( — 0.004) mm latis, membranis modice incrassatis, ceterum 

 hypothecium chondroideum, irregulariter contextum, decoloratum. 

 Perithecium ex hyphis radiantibus, conglutinatls, pachydermaticis 

 formatum, cavitatibus cellularum O.0015 — 0.002 ( — O.004) mm latis, rotun- 

 datis aut ellipsoideis oblongisve, in parte exteriore brevioribus, in 

 margine totum aut intus aeruginosum aut aeruginoso-nigricans, cete- 

 rum decoloratum aut inferne intus sordide violascens. Hymenium 

 0.055 — 0.060 mm crassum, jodo caerulescens deindeque vinose rubens. 

 Paraphyses simplices, crass. O.ooi — O.oois mm, apice capitato-clavatae et 

 0.003 — 0.004 mm crassae aut (in specim. e Pohjola) tantum O.oois mm 



