Acta Societatis pro Fauna et Flora Fennica, 49, N:o 2. 85 



crassis, leptodermaticis, crebre contextis. Zona gonidialis irregu- 

 laris. Gonidia pleurococcoidea, simplicia diam. O.oos — O.oio mm, 

 etiam 2-cellulosa visa. 



6. E. moeniutn Vain. (n. sp.). 



Thallus squamoso-areolatus squamulosusve, adnatus 

 adpressusve aut adscendens, areolis squamisque difformi- 

 bus, 1.3 — 0.4 mm longis latisque, dispersis aut partim con- 

 tiguis, laevigatis aut rarius leviter verrucoso-rugosis, planis 

 aut subconvexis, partim subtubuloso-convolutis, superne 

 pallido-albidis aut subcinerascenti-pallidis, tenuiter pruinosis, 

 opacis, subtus albidis, rhizinis destitutus, hypothallo in- 

 distincto. Apothecia incognita. 



Distr. Ad caementum murorum. Nylandia: Alppila 

 prope Helsingforsiam (Vain.). Tavastia austr.: Templum in 

 Hollola (Vain.), Templum in Tammela („Dermatocarpon 

 Garovaglii" in Kullh. Lich. Rar. Mustiala p. 276, Not. Sallsk. 

 F. Fl. Fenn. Forh. XI, 1871). 



Tantum sterilis hucusque collectum, quare genere omnino 

 incertum, sed peculiare et facile dignotum. Thallus crass. 0.2 mm, 

 in margine parcissime granula sorediorum formans, KHO non 

 reagens (pallidus), superne strato corticali obductus O.025 — O.030 

 mm crasso, plectenparenchymatico, leptodermatico, cavitatibus 

 cellularum O.003 — O.005 mm latis, rotundatis. Stratum medullare 

 subplectenparenchymaticum, cellulis praesertim in seriebus verti- 

 calibus dispositis, totum gonidia continens. Gonidia flavovirescen- 

 tia, globosa, diam. O.005 — O.oos mm, aut p. p. ellipsoidea, long. 

 O.012, crass. O.oos mm, membrana tenui. — Forsan melius ad 

 lichenes imperfectos relegandum. 



Subtrib. 5. Lepidodidymae Vain. 



Thallus subfoliaceus aut squamosus, gonidia continens. 

 Apothecia recta, simplicia, ostiolo mediano instructa. Peri- 

 physes in nucleo circa ostiolum evolutae. Paraphyses in 

 gelatinam diffluxae. Sporae ellipsoideae oblongaeve, deco- 

 lores, 1 — 3-septatae. Gonidia pleurococcoidea. Gonidia hy- 

 menialia nulla. 



