302 E. A. Vainio, Lecideales. 



tiguis. Apothecia sat crebra, lat. O.s — O.4 mm. Perithecium fuscescenti- 

 aut rubricoso-fuligineum. Hypothecium fuscescens et superne rubrico- 

 sum, KHO vulgo pulchrius rubricosum. Epithecium intense rubricosum 

 aut subfuscescens (KHO pulchrius subviolaceo-rubricosum), interdum 

 in eodem apothecio partim dilute aeruginosum. Hymenium circ. O.ioo — 

 0.110 mm crassum, baud aeruginosum. Sporae seriebus cellularum vulgo 

 8, strato gelatinoso modice incrassato. Gonidia cystococcoidea, globosa 

 aut subglobosa, diam. O.oo? — O.012 mm, interdum autosporas plures conti- 

 nentia, subellipsoideas, long. circ. O.oo?, lat. O.005 — O.ooe mm. 



F. ecrustacea (Nyl.) Th. Fr. Lich. Scand. II (1874) p. 629. L. pe- 

 traea f. ecrustacea Nyl. Lich. Lapp. Or. (1866) p. 162. 



Thallus tenuissimus, laevigatus, cinerascens, subdispersus. Apo- 

 thecia lat. 0.4 — 0.3 mm, nigra, baud pruinosa, margine tenui. Epithecium 

 sordide violascens (aut partim olivaceum in eodem apothecio). 



Distr. Supra lapidem graniticum ad Susijarvi in KKer. (N. I. 

 Fellman). 



Thallus areolis planis, hypothallo sat distincto. Apothecia saepe 

 papillata, prominentia. Hymenium baud aeruginosum. Hypothecium 

 rubricoso-fuligineum. Sporae 8:nae, decoloratae, submurales, septis 

 transversis 5 — 4, septis longitudinalibus paucis, long. circ. O.025 — O.027, 

 crass. 0.011 mm. 



F. sublavata Vain. L. obscurata var. roridula f. sublavata Vain. 

 Adj. Lich. Lapp. II (1883) p. 139. 



Thallus dispersus, hypothallo nigricante, tenui. Apothecia disco 

 saepe pruinoso. 



Distr. In rupe talcaceo-schistosa prope Sirkela in Kuusamo 

 (Vain.). 



Thallus verrucis O.4 — O.2 mm latis, depresso-convexis, persicino- 

 cinerascentibus. Apothecia lat. O.e — O.3 ( — 1.2) mm, sat crebra, inter 

 areolas disposita, disco piano, saepe cinereo-pruinoso, saepe papillate, 

 margine sat tenui, nigro, nudo, prominente. Perithecium rubricoso- 

 fuligineum. Hypothecium fuscescens aut fulvo-fuscescens. Epithecium 

 subviolaceo-rubricosum. Sporae decoloratae aut raro demum aerugi- 

 nosae, cellulis sat numerosis. — Haec forma baud bene cum Rh. ob- 

 scurato jungitur. 



12. Rh. porphyrostrotum Vain. 



Lecidea porphyrostrota Vain. Adj. Lich. Lapp. II (1883) p. 135, 139 

 (excl. var.). 



