130 Acta Societatis pro Fauna et Flora fennica, VII. 



lim. crassa, flavo-virescentia, membrana sat tenui. Labii amphi- 

 thecii connivcntes aut demum erecti, discum aequantes aut rarius 

 leviter superantes. Perithecium basi albidum et tenuissimum aut 

 medio pulvinato-incrassatum aut basi deficiens. Epithecium albi- 

 dum. Paraphyses (spirit, vini et KHO) 0,ooi5 millim. crassae, 

 apice haud incrassatae, ramosae, connexae, valde intricatae, ascos 

 vulgo 1 / 3 longiores [aut, observante Miill. Arg., 1. c, ascos fere 

 aequantes]. Hijmenhim jodo lutescens, ascis et sporis violascenti- 

 bus. Sporae raro evolutae, elongatae aut fusiformi-oblongae, api- 

 eibus obtusis, halone crasso (in KHO solubili) indutac, cellulis 

 numerosissimis, circ. 4—5 in quavis sene transversali, septis 

 transversalibus circ. 22. 



4. Opegrapha. 



Humb., Fl. Frib.- (1793) p. 57 (pr. p.); Ach., Licli. Univ. (1810) p. 43 

 (pr. p.); Duf., Rev. Gen. Opegr. (1818) p. 12 (pr. p.); Cheval., Hist. Graph. 

 (1824) p. 10 (pr. p.); Tul., Mem. Licli. II (1852) p. 207; Mass., Mem. Lich. 

 (1853) p. 101 (emend.); Leight., Mon. Brit. Graph. (1854) p. 7; Koerb., Syst. 

 Germ. (1855) p. 278 (em.); Th. Fr., Gen. Heterolich. (1861) p. 94 (em.); Sti- 

 zenb., Steinb. Opegr. (1865); Kickx, Mon. Graph. Belg. (1865) p. 11; Almqu., 

 Skand. Schism. Opegr. (1869) p. 10; Tuck., Gen. Lich. (1872) p. 197; Bornet, 

 Recli. Gon. Lich. (1873) p. 12 et 19, tab. 1—4, tab. 9 fig. 1—6, Deux. Not. 

 Gon. Lich. (1873) p. 1; Almqu., Mon. Arth. Scand. (1880) p. 8; Miill. Arg., 

 Graph. Feean. (1887) p. 4 et 16 (em.); Moller, Cult. Flecht. (1887) p. 30; Nyl. 

 in Hue Addend. (1888) p. 246 (em.). Opegraphella Miill. Arg., Lich. Epiphyll. 

 (1890) p. 20. Aulaxina Fee, Ess. Crypt. Ecorc. (1824) p. C; Miill. Arg., Lich. 

 Beitr. (Fl. 1890) n. 1530. 



Tliallus crustaceus, uniformis, hypothallo et hyphis medul- 

 laribus substrato affixus, rhizinis et strato corticali destitutus. 

 Stratum medullar e vulgo totum aut fere totum gonidia continens, 

 stuppeum, hyphis tenuibus, leptodermaticis. Gonidia chroole- 

 poidea (Trentepholiae umbrinae Bornet similia), cellulis mi- 

 ll utis, anguloso-globosis aut ellipsoideis aut parcius etiam oblon- 

 gis, saltern primum concatenatis, filamenta parce ramosa for- 

 mantibus, demum sacpe pro parte etiam liberis, membrana vulgo 

 sat tenui instructs, vulgo llavovircscentia aut rarius aurea, aul 

 raro phycopeltidea [in Opegraphclla (Miill. Arg.)], seriebus 

 cellularum dichotomis, e ccntro radiantibus et in discum coadu- 

 natis, aut protococcoidea [in Aulaxina (F6e)]. Apothecia 



