1-10 Acta Societatis pro Fauiia et Floia fennica, VII. 



ranioso-coiinexae. Asci clavali, menibrana sat tcnui. Sporae 

 8:nae, apicibns attennatis acutinsculisque. 



Subg. II. Stigmatidiopsis Wainio. Thallus crehre contex- 

 tus, liypotliallo crebre contexto aut indistincto. Fseudostromata 

 clevata aut evanescentia indistinctaque, in parte exteriore gonidia 

 continentia, hyinenia vulgo plura aut rarius solitaria continentia. 

 Hypothecium obscuratum. Sporae pluriseptatae, decolores. Oo- 

 nidta chroolepoidea. 



3. Ch. sphaerale Ach., Syn. Licli. (1814) p. 108; Fee, Mon. 

 Chiod. (1829) p. 15; Nyl., Lich. Nov.-Gran. (1863) p. 486 (mus. Pa- 

 ris.), Lich. Guin. (1889) p. 33; Mull. Arg., Graph. Feean. (1887) p. QQ. 



Thallus sat crassus aut tenuis, creberrime contextus, stra- 

 mineo- aut albido- aut cinereo-glausescens, Ga Cl^ O^ non reagens, 

 hypothallo indistincto aut interdum ad ambitum zonam nigrican- 

 tem crebre contextam formante. Pseudostromata elevata, rotun- 

 data elhpsoideave aut confluentia, convexa, basi constricta, extus 

 thallo subconcoloria subalbidave, intus fusco-nigricantia. Disci 

 rotundati punctiformesque aut oblongi, nigri, epruinosi. Hypothe- 

 cium fusco-nigricans. Sporae decolores, aciculares, demum 3-sep- 

 tatae, long. 0,022 0,0 4 0, crass. 0,ooi5 0,oo25 f 0,004"] millmi. 



Ad corticem arborum et supra ahos lichenes sat frequenter 

 in Brasilia obvenit, n. 307. Thallus vulgo verruculoso-inaequa- 

 hs, opacus, neque jodo nec KHO reagens. Gonidia chroolepoidea, 

 circ. 0,010 0,0 6 minim. crassa, membrana sat tenui. Pseudo- 

 stromata long. circ. 3 0,4, latit. 2 0,4 millim., strato albido go- 

 nidia continente obducta, parte interiore inferioreque ex hyphis 

 laxe contextis fusconigricantibus 0,002 millim. crassis leptoderma- 

 ticis formata, apotheciis numerosissimis aut rarius subsolitarhs 

 instructa. Perithecium latere tenue fuscescensque. Hypothecia 

 fusco-nigricantia, cum parte fusco-nigra pseudostromatis conflu- 

 entia. Hymenium jodo caerulescens et demum vinose rubens. 

 Epithecium fuscescens. Paraphyses 0,0 2 0,ooi5 millim. cras- 

 sae, apice haud aut parum incrassatae, ramoso-connexae. Asci 

 cylindrico-clavati, circ. 0,oio millim. crassi, apicem versus mem- 

 brana leviter incrassata. Sporae 8:nae, apicibus ambobus leviter 

 attenuatis, celluhs cyhndricis, fere aeque longis. 



