Acta Societatis pro Fauna et Flora Fennica, 53, N:o 1. 181 



vulgo sat crebra, lat. vulgo O.s— O.e (O.s — O.s) mm, crass. O.200 — O.320 mm. 

 Hypothecium superne subplectenparenchymaticum, cellulis in seriebus 

 verticalibus aut raro subhorizontalibus (in specimine ad Viburgum 

 lecto), cavitatibus rotundatis aut interdum depressis, O.0015 — O.002 (— O.003) 

 mm latis, membranis modice incrassatis, inferne decoloratum, chondroi- 

 deum, pachydermaticum, irregulariter contextum. Perithecium in mar- 

 gine saepe subplectenparenchymaticum, cavitatibus oblongis, O.002 — O.0015 

 mm latis aut in parte exteriore subellipsoideis, membranis modice in- 

 crassatis, intus decoloratum aut pallidum, inferne decoloratum chon- 

 droideumque, tubulis tenuioribus longioribusque, simplicibus aut partim 

 ramoso-connexis, membranis incrassatis. Hymenium O.oes— O.oso ( — O.090) 

 mm crassum, jodo intense caerulescens deindeque vinose rubens, raro 

 persistenter caerulescens. Paraphyses arete cohaerentes, apice baud aut 

 leviter incrassatae, simplices. Sporae aciculares, rectae aut leviter 

 contortae, apicem inferiorem versus sensim attenuatae, long. O.040 — 

 0.074, crass. O.0015 mm („ — O.0025 mm", observante Nyl.), septis 3—7 (se- 

 cund. Hepp), vulgo parum conspicuis. Gonidia pleurococcoidea, vulgo 

 simplicia. 



Obs. Bacidia arceutina f. deminuta Th. Fr. (Lich. Scand. II, 1874, 

 p. 353), lecta ad Tammela Tavastiae (A. Kullhem), apotheciis describitur 

 parvis (O.2— O.4 mm lat.), subpellucide rufescentibus, planis vel concavis, 

 marginatis, hypothecio luteo-fuscidulo, paraphysibus decoloratis. Colore 

 hypothecii proxima est v. endophaeoterae. — L. arceutina, peltigericola, 

 ad Valkeamaki in Karelia Onegensi (Norrl. Fl. Kar. Oneg. II, 1876, p. 

 31) et in Hollola Tavastiae austr. (Nyl. Fl. 1874 p. 14) a Norrl. lecta, 

 ad Bacidiam peltigericolam, Bacidiae muscoram (Sw.) affinem, pertinet. 



16. B. rubella (Ehrh.) Mass. 



Ric. Lich. Crost. (1852) p. 118; Koerb. Syst. Lich. Germ. (1855) p. 

 186, Parerg. Lich. 2 Lief. (1860) p. 131 (excl. var. 7.); Th. Fr. Lich. Arct. 

 (1860) p. 179, Lich. Scand. II (1874) p. 344; Branth et Rostr. Lich. Dan. 

 (1869) p. 106; Arn. Lich. Fragm. XI (Fl. 1871) p. 56, Lich. Frank. Jur. 

 (1884) p. 182; Lindau Lich. Unters. I (1895) p. 22. Lichen rubellus 

 Ehrh. PI. Crypt. XX (1791) n. 196 (Arn. Lich. Fragm. XXIII p. 552, XXVII 

 p. 405). Lecidea rubella Schaer. Lich. Helv. Spic. (1833) p. 168; Vain. 

 Etud. Lich. Bres. II (1890) p. 10. Secoliga Stizenb. Krit. Bern. Lecid. 

 Nadelf. Sp. (1863) p. 47. Lichen corticalis Rutstr. Spic. Crypt. Suec. 

 (1794) p. 7. Lichen luteolus Schrad. Syst. Samml. Crypt. (1794) n. 85; Ach. 

 Lich. Suec. Prodr. (1798) p. 42; Wahlenb. Fl. Suec. (1826) p. 832. Lecidea 

 luteola Ach. Meth. Lich. (1803) p. 60 (o.), Lich. Univ. (1810) p. 95 p. p., 

 Syn. Lich. (1814) p. 41 (excl. ,^); Sommerf. Suppl. Fl. Lapp. (1826) p. 

 164; Nyl. Lich. Scand. (1861) p. 209 (a.), Prodr. Nov.-Gran. Lich. ed. 2 

 (1864) p. 63, Lich. Paris (1896) p. 82. Biatora vernalis a. luteola Fr. 

 Lich. Eur. Ref. (1831) p. 260. 



