194 Acta Societatis pro Fauna et Flora fennica, YII. 



marginalia aut supra thallum sparsa, peltata. Excipulum strato 

 corticali pseudo-parenchymatico crasso (cellulis fere sicut in 

 strato corticali thalli), strato medullari ex hyphis leptoderma- 

 ticis contexto, zonam gonidialem vulgo solum infra stratum cor- 

 ticale continente (in sect. Ricasolia et Eulobaria et Lecano- 

 lobarina) aut gonidiis omnino destituto (in sect. Lobarina). 

 Hypothecium pallidum aut testaceum aut raro testaceo-rufescens. 

 Paraphyses sat arete cohaerentes, gelatinam haud abundantem 

 (in KHO vulgo sat laxam) percurrentes. Sporae 8:nae aut abortu 

 pauciores, fusiformes aut oblongo-fusiformes aut fusiformi-acicu- 

 lares aut bacillares, 1— 9-septatae, decolores aut pallidae fusce- 

 scentesve. Conceptacula pyenoconidiorum thallo immersa aut 

 saepe demum verrucas thallo obductas formantia, pallida, minute 

 parenchymatica. Sterigmata ramosa aut subsimplicia, constricte 

 articulata, articulis numerosis, brevibus. Pycnoconidia subcylin- 

 drica, apicibus levissime incrassatis, brevia, recta. 



Sect. 1. Eicasolia ! ) (De Not.) Wainio. Gonidia palmella- 

 cea. Rhizinae ex hyphis arete connatis formatae aut pro parte 

 penicillatae et hyphis laxe cohaerentibus, apice liberis. Apothecia 

 zona gonidiali bene evoluta infra stratum corticale excipuli. Con- 

 ceptacula pyenoconidiorum thallo immersa aut saepe demum ver- 

 rucas thallo obductas formantia. 



Ricasolia De Not., Framm. Lichenogr. (1846) p. 178 (emend.); Nyl., 

 Ess. Nouv. Classif. Lich. (1855) p. 173 (haud Mass., Mem. Lich. 1853 p. 47); 

 Linds., Mem. Sperm. (1859) p. 201, tab. X fig. 6—12; Nyl., Syn. Lich. (1858 

 —60) p. 365 (excl. R. Wrightii), Lich. Scand. (1861) p. 96, Fl. 1869 p. 313 

 (pr. p.), Lich. Nov.-Zel. (1888) p. 40. Sticta sect. Eicasolia Stizenb., Beitr. 

 Flechtensyst. (1862) p. 175 (pr. p.); Tuck., Syn. North Am. (1882) p. 91. 



J ) Ad genus Lobariae Schreb. etiam sectiones sequentes pertinent: 2. 

 Eulobaria Wainio (Sticta sect. Eusticta Mall. Arg.; nomen sectioni Lobariae 

 ineptum); gonidia palmellacea; rhizinae penicillatae; apothecia gonidia intra 

 stratum corticale plus minusve continentia; ex. Lobaria pulmonaria (L.) et 

 L. linita (Ach.). 3. Lecanolobarina Wainio; gonidia nostocacea; rhizinae 

 penicillatae; apothecia gonidia infra stratum corticale in basi apothecii parce 

 continentia; ex. Lobaria retigera (Ach.). 4. Lobarina (Nyl.) Wainio; gonidia 

 nostocacea; rhizinae penicillatae; apothecia . gonidiis destituta; ex. Lobaria 

 scrobicnlata (Scop.). 



