Acta Societatis pro Fauna et Flora Fennica, 53, N:o 1. 177 



ellipsoideis et O.oos mm latis. Hypothecium superne subchon- 

 droideum, cavitatibus brevibus, vulgo depressis, O.oois ( — O.002) 

 mm latis, in seriebus subhorizontalibus aut irregularibus.mem- 

 branis modice pachydermaticis, inferne irregulariter chondroideum, 

 tubulis tenuibus, membranis incrassatis. Hymenium O.090 — O.080 

 mm crassum, jodo persistenter caerulescens. Paraphyses simpli- 

 ces, apice clavato-incrassatae, clava O.003 mm crassa. Sporae 

 rectiusculae, apice inferiore sensim attenuate, altero apice obtuso 

 aut subacute, „septis transversis 5 — 15". — Apotheciis omnino 

 atris et epithecio baud purpureo a B. subacerina et *B. laurocerasi 

 differt, at species autonoma non sit. — • Specimen in Tammela 

 lectum, apotheciis atris et epithecio nigricanti- vel olivaceo-fuli- 

 gineo cum "B. atrogrisea congruens, statura apotheciorum B. sub- 

 acerinae est similis. Epithecium KHO subfusco-fuligineum. Hy- 

 menium jodo caerulescens, dein vinose rubens. Hypothecium 

 superne pallidum. Paraphyses crass. O.ooi mm, apice baud aut 

 leviter incrassatae. Sporae aciculares, long. O.oto — O.060, crass. 

 0.0025 — 0.002 mm, flexuosae aut subrectae, septis 16. 



Obs. 1. B. endoleuca (Nyl.) Vain. „Biatorae luteolae status 

 (endoleuca in litt.)" Nyl. Bot. Not. 1853 p. 98 („quae L. premnea Hook. 

 Brit. Fl. p. 176, Biatora premnea Leight. Lich. Brit. Exs. n. 90"). 

 Thallus tenuis aut sat tenuis, leviter verrucoso-inaequalis, albido- aut 

 cinereo-glaucescens, hypothallo indistincto. Apothecia vulgo dispersa, 

 mediocria aut majuscula, lat. I.3 — O.4 mm, adpressa et late adnata, basi 

 leviter constricta, crass, circ. O.300 — O.290 mm, atra, baud pruinosa, disco 

 convexo, primum piano, opaco, margine tenui, opaco, dein mox excluso. 

 Perithecium extus purpureo-fuligineum, KHO leviter subpurpureo- 

 reagens, intus dilute rubricosum aut decoloratum, chondroideum, ex 

 hyphis formatum radiantibus, pachydermaticis, conglutinatis, cavitatibus 

 oblongis aut elongatis, O.ooi mm latis. Hypothecium superne pallidum 

 et partim praesertimque marginem versus dilute rubricosum, KHO 

 non reagens, subchondroideo-plectenparenchymaticum, cavitatibus ro- 

 tundatis aut depressis brevibusque, 0.002 — O.0015 mm latis, in seriebus 

 irregulariter verticalibus, membranis modice incrassatis, inferne de- 

 coloratam, irregulariter chondroideum, tubulis tenuibus, membranis 

 incrassatis. Hymenium O.ioo — O.090 mm crassum, jodo persistenter cae- 

 rulescens. Hymenium superius cyanescenti-nigricans (partim ad mar- 

 ginem anguste subpurpureum), KHO non reagens. Paraphyses sat 

 arete cohaerentes, simplices, crass. O.0015 mm, apice cyaneo-nigricanti- 

 . clavatae, clava O.002 ( — O.003) mm crassa. Sporae Smae, rectae, acicula- 

 res, septis transversis circ. 7—10, altero apice attenuato, altero obtuso 

 aut acuto, long. O.052 — O.042, crass. O.003 mm, ex annot. Nylandri „long. 

 0.066 — 0.052, crass. O.0045 mm". — Forsan est autonoma species, colore 

 epithecii ab affinibus differens. — Ad corticem arboris prope Shrews- 



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