Acta Societatis pro Fauna et Flora Fennica, 53, N:o 1. 293 



Thallus crustaceus, uniformis, verruculosus verrucosusve 

 aut subareolatus, cinerascens aut fusco-cinerascens, subprui- 

 nosus, verruculis sat laevigatis, medulla alba, nee KHO, nee 

 jodo reagente, hypothallo nigro, bene evoluto aut evanescente. 

 Apothecia sat parva, nigra, nuda, plana et tenuiter marginata 

 aut demum convexa immarginataque, baud papillata. Sporae 

 8:nae— 4:nae — 2:nae singulaeve (in eodem apothecio), diu 

 aeruginosae, demum fuligineae, murali-divisae, long. O.oao — 

 0.044 (—0.024), crass. O.013— O.019 (— O.oio) mm, cellulis demum 

 numerosissimis numerosisve. 



Distr. Ad rupes et saxa, granitica, gneissacea, dioritica 

 et gabbroitica crescit. Kb.: Saramo et Ylikyla in Nurmes 

 (Vain. 1. c.). OKaj.: Kylmala in Kianta (Vain.). Kuus.: In 

 reg. abietina montis Narankavaara (f. extenuata). 



Thallus verruculis areolisve O.5 — O.2 ( — O.15) mm latis, con- 

 vexis aut depressis aut raro planis, dispersis aut partim sub- 

 contiguis, KHO cum CaCl202 non reagentibus. Apothecia O.7 — 1 

 ( — 0.3) mm lata, sat late adnata, basi leviter constricta, promi- 

 nentia, vulgo sat dispersa, disco laevigato aut leviter scabrido, 

 margine saepe primum leviter prominente. Perithecium extus 

 subpurpureo-fuscofuligineum, intus dilute coloratum. Hypothecium 

 fuscescens, KHO subpurpureum. Hymenium circ. O.iio — O.iso mm 

 crassum, jodo persistenter caerulescens, gelatinosum. Epithecium 

 fusco- aut subrubricoso- aut rarius olivaceo-fuscescenti- vel oliva- 

 ceo-fuligineum, KHO subpurpureum. Paraphyses parce ramoso- 

 connexae, apice leviter incrassatae. Sporae strato gelatinoso, 

 crasso, decolorato indutae. — Intermedia est inter Rh. concretum 

 et Rh. grande, a posteriore verruculis thalli tenuiter pruinosis et 

 medulla jodo non reagente differens. 



F. extenuata Vain. *L. phalerospora f. extenuata Vain. Adj. Lich. 

 Lapp. II (1883) p. 135. 



Thallus areolis O.15 — O.3 mm latis, planis aut depresso-convexis, 

 tenuibus, dispersis, hypothallo tenui, disperso. Epithecium rubricoso-, 

 fuscescenti- aut olivaceo-fuligineum. Sporae 8:nae — 4:nae (— 2:nae), 

 long. 0.024 — 0.044, crass. O.012— O.ois mm, diu aeruginosae, cellulis nu- 

 merosissimis. 



Distr. In latere rupis gabbroiticae in reg. abietina montis 

 Narankavaara in Kuusamo (Vain.). 



