Acta Societatis pro Fauna et Flora Fennica, 53, N:o 1. 339 



Thallus tenuis aut sat tenuis aut raro modice incrassatus, 

 areolis O.2 — O.5 mm latis, angulosis, planis aut raro convexis et 

 subrotundatis, vulgo laevigatis, Apothecia crebra, lat. O.5 — 0.9 mm, 

 margine baud aut interdum leviter prominente. Perithecium fusco- 

 aut rubricoso-fuligineum. Hypothecium fuscescens aut rubricoso- 

 nigricans, KHO non reagens. Epithecium fuligineum aut rubri- 

 coso-fuligineum aut fuscescens, KHO pulchrius rubricosum. Para- 

 physes parce ramoso-connexae, gelatinam abundantem percur- 

 rentes, apice leviter incrassatae. Sporae decoloratae aut demum 

 glaucescentes vel dilute aeruginosae vel dilute fuscescentes, 

 medio saepe constrictae, strato gelatinoso crasso indutae, raro 

 nonnullae 3-septatae. Conidia „cylindrica, recta, long. O.oio — O.012, 

 crass. 0.001 mm" (sec. Arn. Lich. Tirol XIII p. 242). Gonidia 

 cystococcoidea, globosa aut subglobosa, diam. O.007 — O.012 mm, 

 membrana sat tenui. 



F. aspicilioides Vain. 



Thallus demum sat crassus, areolatus, areolis vulgo circ. 2 — O.5 

 mm latis, angulosis, contiguis, planis, sat obscure cinerascentibus, 

 demum leviter inaequalibus, jodo caerulescentibus, ad ambitum hypo- 

 thallo distincto. Apothecia partibus crassioribus thalli innata et strato 

 thallino imposita, ad ambitum thalli hypothallo imposita. 



Distr. Ad lapidem graniticum loco aprico ventoso in littore 

 marino ad Tervaniemi Viburgi [„L. confervoides (D.C.)" in Vain. Lich. 

 Vib. p. 68]. 



Hypothecium saepe sordide olivaceo-nigricans. Hymenium jodo 

 persistenter caerulescens. Paraphyses crebre constricteque articulatae, 

 apice subviolaceo-nigricantes et circ. O.005 mm crassae. Sporae 1-septatae, 

 diu decoloratae, demum sordide olivaceo-nigricantes fuscescentesve, 

 long. 0.022 — 0.026, crass. O.oio — O.012 mm. 



F. infuscata Vain. Lecidea atroalbicans f. infascata Vain. Licb. 

 Exp. Vegae Pitlekai (1909) p. 115. 



Thallus testaceo- aut cervino-fuscescens. 

 Distr. Pluribus locis collecta. 



F. cinerascens Vain. L. atroalbicans f. cinerascens Vain. 1. c. 

 Thallus subcinerascens, areolatus, supra hypothallum nigrum 

 dispersus. Apothecia vulgo thallum superantia. 



Distr. Ad saxa silacea et gneissacea collecta. KOn.: Tiudie 

 (G. Selin). Kb.: Niska in Enontaipale (Vain.). LTul.: Kitofka (N. I. 

 Fellman). 



F. fallax Vain. L. atroalbicans f. fallax Vain. Adj. Lich. Lapp. II 

 (1883) p. 131. 



