Pertusaria. 109 



(Fl. 1884) n. 743; Hue, Nyl. Addend. (1886) p. 122. Porina Acli. 

 in Kongl. Yet. Ak. Handl. 1809 p. 159. 



Thallus tenuis aut sat tenuis aut rarius mediocris, subcon- 

 tinuus, laevigatus aut verrucoso- vel verruculoso-inaequalis, albi- 

 dus aut glaucescens aut glaucescenti-stramineus, Ga Gl^ O^ non 

 reagens, KHO demum leviter lutescens. Pseudostromata circ. 0,s 

 1,8 millim. lata, thallo concoloria, KHO leviter lutescentia, hemi- 

 sphaerica aut demum depresso-subglobosa, apice convexo aut 

 anguste impresso-concaviusculo, laevigata, basi sensim in thaUum 

 abeuntia aut demum constricta, apothecia valgo plura (circ. 1 7) 

 continentia, discis pseudostroma aequantibus aut leviter impressis^ 

 sparsis aut confertis. Sporae 8:nae 4:nae aut raro pro parte 

 2:nae soUtariaeve, eUipsoideae aut oblongae, long. circ. 0,0 5 

 0,115, crass. 0,oi2 0,040 millim., membrana laevi, in sporis nor- 

 mahbus modice incrassata, halone nullo. 



Var. turgida Mull. Arg., 1. c. 



Pseudostromata depresso-subglobosa, basi demum constricta^ 

 disco pseudostroma aequante aut impresso. Sporae vulgo 4:nae 

 aut pro parte 8;nae. 



Ad corticem arboris in Garassa (1400 metr. s. m.) in civ. 

 Minarum, n. 1483. P. communi D. G. habita est subsimihs. 

 Thallus crassitudine mediocris aut sat tenuis, vulgo phis mi- 

 nusve verrucoso- vel verruculoso-inaequaUs, albidus aut glauce- 

 scenti-albidus. Discus KHO dikite rubescens, puncto nigricante 

 minutissimo indicatus. Paraphyses ramoso-connexae, 0,oo2 mil- 

 hm. crassae. Asci jodo caerulescentes. Sporae monostichae, de- 

 colorcs, apicibus obtusis, membrana circ. 0,oo5 milUm. crassa aut 

 in sporis haud bene evohitis strato interiore bene incrassato. 



7. P. rhodostomoides Wainio (n. sp.). 



TJiallus sat tenuis, subcontinuus, leviter verruculoso-inae- 

 quahs, albidus, Ga Gl^ Og non reagens, KHO maculatim lutescens, 

 praesertimque verrucuhs et pseudostromatibus KHO lutescentibus. 

 Pseudostromata circa discos decorticata et dihite rosea, ceterum 

 thallo concoloria, circ. 2 1 milhm. lata, depressa aat irregulariter 

 subglobosa, rugosa tuberculatave, basi constricta, apice rugoso- 

 concavo, apothecia plura (circ. 4 15) continentia, discis pseudo- 

 stroma aequantibus sparsisque, aut in vertice concavo sitis aut 

 impressis. Sporae 8:nae aut abortu pauciores, oblongae aut cUi- 



