298 E. A. Vainio, Lecideales. 



F. fuscocinerea (Krempelh.) Arn. (f. fuscocineream Arn.) Lich. 

 Fragm. XII (Fl. 1871) p. 149. Rh. petraeum a. majus a. fuscocineream 

 Krempelh. Lich. Bay. (1861) p. 203 (em.). Lecidea petraea il fuscocinerea 

 Hepp Flecht. Eur. IV (1867) n. 756. L. obscurata var. fuscocinerea 

 Vain. Adj. Lich. Lapp. II (1883) p. 138. L. petraea f. subcontigua Nyl. 

 Lich. Lapp. Or. (1866) p. 162 (haud Addit. Lich. Bol., 1862, p. 381). 

 L. petraea var. irrigua Flot. in Zwackh Lich. Exs. (1852) n. 133 (nomen 

 varietati locis irriguis haud crescenti ineptum). L. confervoides li. con- 

 crete Schaer. Lich. Helv. Spic. Ill (1828) p. 128, Lich. Helv. Exs. (1828) 

 n. 177 (haud Ach.). 



Exs. supra indicata. 



Thallus tenuis aut sat tenuis, cinereus aut subcinerascens aut 

 raro subfuscescenti-cinerascens vel cinereo-albidus. Apothecia atra, 

 nuda, margine crassiusculo. Epithecium subolivaceum. 



Distr. Ad lapides, praesertim graniticos, in campis graminosis 

 et ericetis passim aut sat frequenter in partibus meridionalibus terri- 

 torii et adhuc in Ostrobotnia Kajanensi (Vain. Adj. Lich. Lapp. II p. 

 138). LTul.: Ad KuoUa (N. I. Fellman, „L. petraea f. subcontigua" 

 Nyl. Lich. Lapp. Or. p. 162). LEnont.: Kelottijarvi (J. P. Norrlin). 

 LKem.: (E. Nylander). KKer.: Knjasa (Fellm.). Kuus.: Ad Kitkajoki 

 (F. Silen). 



Thallus areolis circ. 1 — O.2 mm latis, planis aut raro leviter con- 

 vexis, laevigatis, aut subcontinuus et rimuloso-diffractus, nee KHO, 

 nee CaCl202, nee his solutionibus unitis reagens. Apothecia O.e— O.s 

 (0.5 — 1) mm lata, saepe sat crebra aut partim aggregata. Perithecium 

 purpureo-fuligineum aut olivaceo-nigricans, KHO non reagens. Hypo- 

 thecium rubricoso- aut fusco-fuligineum, KHO parum reagens, ex 

 hyphis irregulariter contextis, conglutinatis, leviter pachydermaticis 

 formatum. Epithecium sordide subolivaceum, KHO non reagens. 

 Hymenium ceterum parte superiore saepe aeruginosum decoloratum- 

 ve, crass. O.oso — O.ioo mm. Paraphyses gelatinam abundantem percur- 

 rentes, crebre septatae, parce ramoso-connexae, apice leviter aut parum 

 incrassatae. Asci ventricoso-clavati. Sporae strato gelatinoso sat 

 crasso indutae, cellulis saepe haud valde numerosis, seriebus trans- 

 versis cellularum saepe 5 — 9. Conidangia „punctiformia, thalli areolis 

 insidentia". Conidia „recta aut subrecta, long. O.012 — 0.0:5, crass. O.ooi 

 mm" (sec. Arn. Lich. Tirol XIII p. 243, XX p. 374), et „recta bacillaria- 

 que, long. O.ooe, crass. O.oooe mm" (sec. Nyl. Lich. Paris p. 101 et annot. 

 in n. 9777 in herb. Nyl.). Gonidia cystococcoidea, simplicia, vacuolis 

 lateralibus, globosa, diam. O.007 — O.013 mm, aut ellipsoidea et long. 

 O.014 — 0.016 et crass. O.oos — O.oio mm, membrana sat tenui. 



