194 E. A. Vainio, Lecideales. 



In specimine typico (in Rabenh. Lich. Eur. n. 509), ad 

 corticem Fagi prope Constantiam in Germania a Stizenb. lecto, 

 thallus modice incrassatus, verruculis minutissimis granuliformi- 

 bus crebre inspersus, cinereo-glaucescens. Apothecia sparsa aut 

 sat crebra, lat. 0.5 — 0.3 mm, crass. O.260 — O.200 mm, subcarneo- 

 pallida, disco persistenter piano aut demum depresso-convexo, 

 margine sat tenui (crassiore, quam in v. phacode), persistente 

 aut demum excluso, disco vulgo concolore. Hypothecium superne 

 pallido-lutescens aut intense carneo-pallidum vel fere testaceum, 

 KHO non reagens, subplectenparenchymaticum, cavitatibus cellu- 

 larum depressis, O.002 — O.0015 mm latis, in seriebus horizontalibus 

 dispositis, membranis modice incrassatis, inferne subdecoloratum, 

 chondroideum, pachydermaticum, tubulis elongatis, O.0005 — O.noi 

 mm latis, irregulariter dispositis. Perithecium chondroideum, ex 

 hyphis radiantibus, conglutinatis formatum, cavitatibus cellularum 

 elongatis aut oblongis, tenuibus, membranis modice aut bene 

 incrassatis, pallidum aut pallido-lutescens, inferne decoloratum, 

 KHO non reagens, aut partim in superficie marginis cavitatibus 

 globosis, 0.003 mm latis, membranis modice incrassatis. Hyme- 

 nium 0.060 — O.050 mm crassum, totum decoloratum aut partim 

 pallidum, jodo intense caerulescens deindeque vinose rubens. 

 Paraphyses sat arete cohaerentes, simplices, apice levissime aut 

 parum incrassatae. Sporae aciculares, rectae, alterum apicem 

 versus sensim attenuatae, altero apice obtuso aut acuto, septis 

 3 aut raro pluribus, aut simplices, long. O.034 — 0.048 (in specimine 

 ex Hoglandia teste Nyl. „ — O.062", ex Anglia ,,0.027"), crass. 

 0.0015 — 0.002 („ — 0.0025") mm. Conidia filiformia, bene arcuata, 

 long. 0.012 — 0.018 (teste Nyl. in n. 17855) aut O.oie — O.022 (teste 

 Nyl. in n. 17836, ab eo in „L. chloroticam"' relato), crass. O.ooos 

 mm. Gonidia pleurococcoidea. — Notis externis et internis a B. 

 albescente differt, at saepe in eam transire videtur. A L. rubella 

 sporis tenuioribus, apotheciis minoribus et verruculis thalli sub- 

 tilioribus distinguitur. 



Obs. Lecidea tarandina Nyl. [Sert. Lich. Labuan (1891) p. 44J 

 supra cornu vetustum in Gellivaara in Lapponia Suecica lecta, gonidiis 

 a Trentepohlia iolitho praeditis, cellulis globosis, pachydermaticis, rare 

 concatenatis, diam. O.ose — O.024 ( — O.012) mm, ceterum est B. albescenti 

 (Arn.) simillima (sporas non vidi). Gonidia hanc speciem ad Gya- 

 lectas pertinere indicant. 



21. B. hemipolia (Nyl.) Vain. 



Lecidea arceatina f. hemipolia Nyl. Fl. 1869 p. 413; Norrl. Bidr. 

 Sydostr. Tav. Fl. (1870) p. 189; Hue Addend. II (1888) p. 16.5. 



