170 E. A. Vainio, Lecideales. 



intus rubricoso-rufescens, ceterum pallidum aut partim decolora- 

 tum aut intus plus minus late dilute rufescens. Paraphyses arete 

 cohaerentes, simplices, crass. O.ooi mm, apice clavato-capitatae 

 et crass. O.0015 mm. Sporae aciculares, alterum apicem versus 

 attenuatae, long. circ. O.028 — 0.038, crass. O.0015 — O.002 mm (aut 

 „long. 0.036 — 0.048, crass. O.0015 — O.0025 mm" secundum Nyl. in 

 herb, suo, aut „long'. O.040 — O.06O, crass. O.oois — O.oos mm" obser- 

 vante Stizenb. 1. c). Gonidia pleurococcoidea. 



10. B. Arnoldiana Koerb. 



Lich. Select. Germ. (1857) n. 131, Fl. 1858 p. 134; Arn. Fl. 1858 

 p. 508, Lich. Fragm. XI (Fl. 1871) p. 54; Th. Fr. Lich. Scand. II (1874) 

 p. 351; Flagey Fl. Lich. Franche-Comt. II (1886) p. 353. Bacidia 

 Arnoldiana a. vulgaris Koerb. Parerg. Lich. 2 Lief. (1860) p. 134. 

 Patellaria Arnoldiana Mull. Arg. Princ. Class. (1862) p. 400. Lecidea 

 Larbalestieri Cromb. in Grevillea 1879 p. 143; Vain. Adj. Lich. Lapp. 

 II (1883) p. 16. 



Exs. Zwackh Lich. Exs. (1854) n. 235, (1876) n. 459, (1883) n. 781, 

 (1886) n. 981. — Hepp Flecht. Eur. II (1857) n. 289 p. p. — Koerb. 

 Lich. Select. Germ. (1857) n. 131. — Lojka Lich. Regn. Hung. Exs. II 

 (1882) n. 64. — Arn. Lich. Exs. (1888) n. 1394, Lich. Monac. Exs. (1896) 

 n. 442. 



Thallus vulgo modice incrassatus, verrucoso-inaequalis 

 aut areolato-diffractus, albido- vel glauco-cinerascens. Apo- 

 thecia minuta, sessilia, adnata, basi bene constricta, disco 

 persistenter piano aut demum convexo, vulgo cinereo- 

 fuscescente aut rarius fusco-nigricante pallescenteve, nudo, 

 opaco, margine concolore aut saepe cinerascente, sat tenui, 

 persistente aut demum excluso. Hymenium sat tenue, totum 

 decoloratum aut superne pallidum. Hypothecium superne 

 rufescens vel rubricoso- aut partim pallido-rufescens, KHO 

 non reagens, chondroideo-subplectenparenchymaticum, in- 

 ferne dilutius coloratum aut pallidum decoloratumve, irre- 

 gulariter chondroideum. Perithecium in margine extusque 

 plectenparenchymaticum. Sporae aciculares, sat longae, sat 

 rectae, graciles. 



Distr. Praesertim ad saxa calcaria, rarius ad cortices 

 crescit. In parte subdissoluta rupis graniticae Ruskeakallio 

 in Kuus. (F. Silen). 



