290 E. A. Vainio, Lecideales. 



6. Rh. phaeolepis Vain. (n. sp.). 



Thallus crustaceus, uniformis, areolatus, areolis conti- 

 guis dispersisve, planis aut rarius convexis, olivaceo-fusce- 

 scentibus, laevigatis, baud pruinosis, nee KHO, nee jodo 

 reagentibus, bypothallo nigro. Apotheeia nigra, nuda, plana, 

 tenuiter margmata, baud papillata. Sporae 4:nae aut binae, 

 deeoloratae, murali-divisae, long. O.026 — O.042, erass. O.ou — O.ois 

 mm, eellulis numerosissimis. 



Distr. Cum Rb. geograpbieo supra rupem granitieam 

 Helsingforsiae a. 1876 a me leetum. 



Sporis decoloribus, partim 4:nis et thallo baud pruinoso a 

 Rh. concreto et *Rh. phalerospora, et sporis multicellulosis a 

 Rh. distincto differt. Thallus areolis O.3 — O.e mm latis, margine 

 baud discoloribus. Apotheeia lat. O.3 — O.5 mm, late adnata, basi 

 parum constricta, viilgo leviter prominentia, dispersa, disco lae- 

 vigato, margine leviter aut baud prominente. Perithecium pur- 

 pureo-fuscescens, KHO subpurpureum, hypbis sat leptodermaticis. 

 Hypotbecium rubricoso-fuligineum, KHO purpureum. Hymenium 

 crass. 0.120 mm, jodo caerulescens, bene gelatinosum, parte 

 superiore partim aeruginosum, epitbecio olivaceo aut pulchre 

 aeruginoso, KHO dilutius colorato. Parapbyses parce ramoso- 

 connexae, crebre aut increbre septatae, apice leviter incrassato. 

 Sporae membrana strato gelatinoso crasso aut sat crasso induta. 

 Gonidia cystococcoidea, globosa, simplicia, diam. O.008 — O.018 mm, 

 cbromatopboro irregular!, vacuolis lateralibus, interdum autosporas 

 plures, globosas ant ellipsoideas, diam. O.008 aut O.008 X O.005 mm 

 continentia. — Facie externa baec species intermedia est inter 

 Rh. leptolepidem (Anzi) et Rh. distinctum Tb. Fr. 



7. Rh. concretum (Aeb.) Elenk. 



Lich. PL Ross. Ill (1904) p. 126. Lecidea atroalba p. concreta Ach. 

 Vet. Ak. Handl. (1808) p. 233 (sec. Th. Fr.), non est Catillaria concreta 

 Koerb. Syst. Lich. Germ. (1855) p. 232. L. concreta Vain. Lich. Sib. 

 Merid. (1896) p. 18, Lich. Cauc. (1899) p. 319. Rh. confervoides (D.C.) 

 Mass. Ric. (1852) p. 101. Rh. geminatum (Plot.) Koerb. Syst. Lich. Germ. 

 (1855) p. 259; Th. Fr. Lich. Scand. II (1874) p. 623. Lecidea geminata 

 Flot. in Zwackh Lich. Exs. (1853) n. 199, 200 (ined.); Nyl. Prodr. Lich. 

 Gall. (1857) p. 375 (129), Lich. Scand. (1861) p. 234; Vain. Adj. Lich. 

 Lapp. II (1883) p. 133. Rh. Montagnei (Flot.) Koerb. 1. c. (1855) p. 258, 

 Parerg. Lich. 3 Lief. (1861) p. 229; Arn. Lich. Tirol XIII (1874) p. 243 

 (13), Lich. Frank. Jur. (Fl. 1884) p. 198. Lecidea Montagnei Flot. in Hepp 

 Flecht. Eur. II (1857) n. 309, Index (1867) p. 11. 



