208 E. A. Vainio, Lecideales. 



turn. Hymenium sat tenue, epithecio vulgo subaeruginoso, 

 KHO distinctius aeruginoso. Perithecium in margine vulgo 

 subviolascens. Sporae breves, bacillares oblongaeve, 3-sep- 

 tatae, rectae. Corticola. 



Distr. Ad corticem Betulae et rarius Salicis capreae, 

 Populi, Alni, Juniperi et Abietis, raro etiam ad Polyporum 

 igniarium et ad lignum Betulae crescit, in provinciis meri- 

 dionalibus passim vel sat frequenter obveniens et septen- 

 trionem versus rarescens. Tb.: Ad Piilila, Sutonen, Ruta- 

 lahti (Vain.) et Templum (Norrl.) in Korpilahti, Tourujoki in 

 Jyvaskyla (Vain,). Kb.: Nevala in Lieksa {f. spiirca: Vain.). 

 OKaj.: Paltamo (F. Silen), Kylmala, Ohtosenvaara in Kuhmo 

 (Vain.), Hossa in Kianta (Vain.). Kuus.: Siikaluoma (F. Si- 

 len). KKer. : Knjasa (P. A. Karsten). LKem.: Jerisjarvi 

 (Norrl.). LIm.: Rasnavolok prope Imandra (P. A. Kar- 

 sten et n. 17201 in herb. Nyl.), Kitschakoski in Umpjoki 

 (A. O. Kairamo). Lin.: Hammastunturit, reg. subalpina 

 (F. Silen). 



Thallus saepe parce verruculosus, albidus aut cinerascens, 

 vulgo parum distinctus, hypothallo indistincto aut interdum cine- 

 rascente aut (in f. spurca Vain. 1. c. p. 23) maculas latas nigri- 

 cantes formante. Apothecia lat. I.2 — O.3 mm, sparsa aut partim 

 sat crebra, vulgo adpressa, crass. O.220 — O.340 mm, disco opaco, 

 nudo, margine nudo, saepe nitido, atro aut raro in nonnuUis 

 apotheciis rufescente. Hypothecium in parte superiore subchon- 

 droideo-plectenparenchymaticum, cellulis in seriebus subhorizon^ 

 talibus, cavitatibus parvis, depressis, membranis modice incras- 

 satis, inferne chondroideum, hyphis pachydermaticis, ramoso- 

 connexis, irregulariter contextis, conglutinatis. Perithecium chon- 

 droideum, hyphis radiantibus, conglutinatis, pachydermaticis, 

 tubulis angustis, inferne decoloratum. Hymenium O.040 — O.055 mm 

 crassum, jodo caerulescens deindeque vinose rubens. Paraphyses 

 simplices, apice clavatae et O.0015 — O.004 mm crassae, aeruginosae 

 aut raro olivaceae, at KHO aeruginosae. Sporae long. O.012 — O.020 

 ( — 0.23), crass. 0.0015—0.0035 mm. Conidia (ex annot. Nyl. in n. 

 17223) filiformia, modice arcuata, long. O.oii — O.013, crass. O.0006 

 mm. Stylosporae (ex annot. Nyl. in m. F.) oblongae, rectae, 

 apicibus rotundatis, long. O.008 — O.009, crass. O.0025 mm. Gonidia 

 pleurococcoidea, simplicia aut glomerulosa aut 2-cellulosa visa, 

 membrana leviter incrassata. 



