Acta Societatis pro Fauna et Flora Fennica, 53, N:o 1. 327 



Thallus vulgo fuscescens, haud pruinosus, areolatus, areolis 

 vulgo sat laevigatis, angulosis et undulato-subcrenulatis, demum sat 

 latis squamaeformibusque. 



Distr. Ad saxa et lapides praesertim in rivulis, interdum etiam 

 in campis herbidis et ericetis, locis numerosis coUecta. 



Thallus modice incrassatus aut crassus, areolis planis aut raro 

 demum convexis, circ. 3—0.7 mm latis, contiguis aut raro supra hypo- 

 thallum nigrum dispersis, obscure fuscescentibus aut subcervinis. 

 Apothecia lat. circ. 1 — 0.7 mm ( — l.s mm sec. Th. Fr.), thallum haud 

 aut raro leviter superantia, margine vulgo sat tenui, haud aut leviter 

 prominente. Perithecium rubricoso-fuligineum. Hypothecium rubrico- 

 so- aut fusco-fuligineum. Hymenium circ. O.120 mm crassum. Epithecium 

 rubricosum aut rubricoso-fuligineum aut raro olivaceum fuscescensve. 

 Sporae long. O.026 — O.oss, crass. 014 — O.oie mm, demum fuscescentes, 

 medio vulgo constrictae. 



F. tracheia Vain. Lecidea badioatra f. tracheia Vain. Adj. Lich. 

 Lapp. II (1883) p. 128. L. badioatra *L. cervicolor Nyl. in Brenner Bidr. 

 Hogl. Lafv. (1885) p. 111. 



Thallus cervinus aut partim glauco-cinerascens aut subolivaceus, 

 haud pruinosus, rimoso- vel areolato-diffractus, areolis verruculoso- 

 inaequalibus. 



Distr. Kb.: Ad saxa granitica in flumine ad Saramo in Nurmes 

 cum Lecanora lacustri. OKaj.: Ad saxa gneissacea in Kajaani (K. P. 

 Malmgren). N. : Ad rupem porphyricam in Kappelniemi Hoglandiae 

 (M. Brenner, „*L. cervicolor"). 



Areolae thalli e verruculis O.15 — O.3 mm latis, connatis, constantes. 

 Apothecia lat. circ. O.4 — O.9 mm, subinnata, haud prominentia, tenuiter 

 marginata aut demum immarginata. Perithecium rubricoso-fuligineum. 

 Hypothecium fusco-nigricans. Sporae long. circ. O.028 — O.ose, crass. O.ou — 

 0.016 mm, demum fusco-nigricantes. Hymenium jodo caerulescens. ^ 

 Proxima est f. rivalari. 



F. subinnata Vain. Lecidea badioatra f. subinnata Vain. Adj. Lich. 

 Lapp. II (1883) p. 127. 



Thallus areolatus, areolis circ. 1— O.3 mm latis, planis vel pla- 

 niusculis, angulosis, fuscescentibus vel cincreo-fuscescentibus, haud 

 pruinosis, laevigatis. Apothecia areolis thalli subinnata. 



Distr. Supra saxa granitica et gneissacea in montibus et in 

 rivulis pluribus locis. 



Est forma intermedia inter f. vulgarem et f. rivularem. Thallus 

 areolis contiguis, modice incrassatis aut sat crassis. Apothecia lat. circ. 

 0.4 — 1.3 mm, immarginata aut marginata. Epithecium rubricosum. Sporae 

 primum decoloratae, dein olivaceae, demum fusco-nigricantes, long. circ. 

 0.026—0.033, crass. O.013 mm. 



