240 E. A. Vainio, Lecideales. 



Var. microbola (Nyl.) Vain. Lecidea sphaeroides f. microbola Nyl. 

 in Stizenb. Lee. Sabul. (1867) p. 15, Norrl. Ber. Torn. Lappm. (1876) p. 

 336 (in herb. Nyl.). 



Apothecia rufescentia aut testaceo-rufescentia. Thallus partim 

 sorediosus. 



■9 



Distr. Vanhaviipuri (Vain.), Parinpelto in Hollola („L. sphaer. v. 

 versatilis" sec. Nyl. in Norrl. Bidr. Sydostr. Tav. Fl. p. 188), Kirkon- 

 kyla in Padasjoki (Vain.), Evo (Norrl.), Perttiniemi (Norrl.), Nuottivaara 

 in Nurmes („f. versatilis" Vain. Adj. Lich. Lapp. II p. 11), Jerisjarvi 

 in Muonioniska (Norrl.), loca supra indicata. 



Fere est subspecies, intermedia inter B. epixanthoidem et B. 

 sphaeroidem, sed in priorem saepe transit, in eodem specimine etiam 

 apotheciis obscuratis instructa. — Lecidea microbola Ach., Syn. Lich. 

 (1814) p. 48, ad L. globosam Clem, spectans, herbario Ach. deest, nee 

 exactius cognita. In herb. Nyl. non reperiens „f. microbolam Nyl.", 

 ad corticem Betulae prope Kuolla in Lapponia a Karsten lectam, a 

 Stizenb. commemoratam, sec. specim. Norrlinianum banc varietatem 

 determinavi. 



Obs. B. epixanthoides f. versatilis (Nyl.) Vain. {L. sphaeroides f. 

 versatilis Nyl. in Stizenb. Lee. Sab., 1867, p. 16) sec. specim. orig. ad 

 Dianovagora in Karelia a Kullh. lectum (n. 18632 in herb. Nyl.) thallo 

 tenui, passim parce (distincte) soredioso a f. normali (Vain. Adj. Lich. 

 Lapp. II p. 10) hujus speciei differt et in eodem specimine orig. apotheciis 

 fuscescentibus et parcius rufescentibus atque testaceis instructa est. 

 Haec forma coUecta est etiam in Evo (Vain.), ad Sarkijarvi et Pahki- 

 jarvi in Tammela (A. KuUhem), Canalem Saimae (0. Carlenius), Tscholkka 

 in Repola (Vain.), Jerisjarvi in Lapponia (Norrl.). 



8. B. subfuscula (Nyl.) Th. Fr. 



Lich. Seand. II (1874) p. 378. Lecidea subfuscula Nyl. Fl. 1865 

 p. 604. Bacidia Th. Fr. Lich. Spitsb. (K. Sv. Vet. Ak. Handl. 7, 1867) 

 p. 35. Lecidea sabuletorum f. venusta (Hepp) Stizenb. Lee. Sab. (1867) 

 p. 37. L. leucococcoides Nyl. Fl. 1869 p. 296 (conf. infra). 



Thallus modice incrassatus aut raro tenuis, verrucosus 

 aut rarius verruculosus, verrucis connatis aut raro dispersis, 

 impure albescens aut albido-pallescens, esorediatus. Apo- 

 thecia vulgo sat parva, primum thallo immersa, demum 

 basi tota adnata, disco fuscescente rufescenteve aut testaceo- 

 rufescenti- vel testaceo- aut nigricanti-variegato, piano aut 

 vulgo demum depresso-convexo aut raro bene convexo, 

 primum margine concolore pallidioreve, tenui cincta, demum 



