Acta Societatis pro Fauna et Flora Fennica, 53, N:o 1. 171 



Thallus modice incrassatus aut sat tenuis aut interdum 

 crassus, raro areolis sat laevigatis (Koerb. 1. c. n. 131), hypo- 

 thallo indistincto aut albo. Apothecia sparsa aut sat crebra, lat. 

 0.4 — 0.6 (0.3 — O.s) mm, crass. O.ieo — O.330 mm, humida ob hypo- 

 thecium translucens obscuriora nigricantiave, etiam apothecia 

 pallida humida saltem partim aut tantum perithecio margineve 

 rufescentia evadunt. Hypothecium superne partim cellulis valde 

 depressis et ad marginem in seriebus horizontalibus, ceterum 

 irregulariter dispositis, membranis modice incrassatis, cavitatibus 

 valde angustis, inferne hyphis irregulariter contextis, magis 

 pachydermaticis, cavitatibus longioribus, angustis. Perithecium 

 in margine, praesertim intus, rufescens aut rubricoso-rufescens, 

 KHO non reagens aut subfuscescens, extus et inferne totum 

 decoloratum aut subpallidum, plectenparenchymaticum, ex hyphis 

 radiantibus, conglutinatis formatum, cavitatibus ellipsoideis ob- 

 longisve aut globosis, lat. O.0015 — O.004 mm, membranis modice 

 incrassatis, partim intus chondroideum, membranis crassioribus 

 et cavitatibus angustis. Hymenium O.oso — O.060 mm crassum, 

 jodo caerulescens deindeque vinose rubens. Paraphyses arete 

 cohaerentes, crass. O.ooi mm, apice O.0015 mm, simplices. Sporae 

 8:nae, aciculares, altero apice sensim attenuate, altero acuto ob- 

 tusove aut apicibus ambobus obtusis, 3 — 5-septatae (etiam 6-septa- 

 tae, observante Stizenb. 1. c), long. O.027 — O.037 ( — O.040, secun- 

 dum Nyl. in herb, suo), crass. O.002 — O.003 mm (O.02 — O.ooi mm, 

 sec. Nyl. in herb. suo). Conidia 3 formarum Nyl. in herb, suo 

 descripsit: 1) filiformia, bene arcuata, long. O.021 — O.026, crass. 

 0.0005 mm in specimine n. 17586 c prope Rochechouard (Haute- 

 Vienne) ab E. Lamy collecto, 2) fusiformi-acicularia, recta aut 

 levissime arcuata, apices ambos versus sensim attenuata, long. 

 0,024 — 0.044, crass. O.ooi mm in specimine n. 17589 circa Ther- 

 mas Herculis in Hungaria ab H. Lojka lecto, 3) fusiformi-acicu- 

 laria, modice arcuata, apices ambos versus sensim attenuata, 

 long. 0.025 — 0.030, crass. O.ooi mm in specimine n. 17586 in Villa 

 Franca a Fuzet lecto. Gonidia pleurococcoidea, diam. O.ooe — O.oos 

 mm, simplicia aut raro 2-cellulosa in Koerb. 1. c. n. 131, aut 

 2 — 4-cellulosa aut glomerulosa in Zwackh 1. c. n. 235. 



Obs. Biatora 'modesta Zwackh Lich. Exs. n. 332 A, B, Bacidia 

 Arnoldiana f. modesta Arn. Lich. Fragm. XI p. 54, Lich. Frank. Jur. 

 p. 184, Secoliga inundata f. corticola Stizenb. 1. c. p. 38 p. p., thallo 

 minutissime granuloso a Bacidia Arnoldiana Koerb. differt, hypothecio 

 rubricoso-rufescente, KHO non reagente ei congruens (sporis 3—7- 

 septatis sec. Stizenb., 1. c. tab. II f. 15). Ad corticem Fagi et Castaneae 

 prope Heidelbergam a Zwackh lecta est (n. 17593 et 17587 b in herb. 

 Nyl.). Bacidia inundata b. corticola Krempelh., Lich. Bayerns (1861) 



