GLASGOW SOCIETY OF FIELD NATURALIST'S. 217 



Thallus pallidus vel pallide cinerascens crassiusculus, rimoso- 

 areolatus, creberriter papillato-rugosus, late expansus (K flavens 

 dein intense rubens); apothecia in verrucis thallinis albidis, 

 truncato-prominulis majusculis (latit. usque 1-8 mm.) inclusa, 

 lecanorina (1 — 5 in quavis verruca) carnea, albido-pruinosa 

 (latit. '3 --6 mm.); sporse Snse plerumque uniseriatse, incolores 

 ellipsoidese, simplices, "02 — -032 x -01 — -014 mm.; paraphyses 

 distinctae graciles undulatse apicibus incoloribus. lodo gel. hym. 

 coerulescens dein intense vinose fulvescens. Corticola. 



Arete affinis P. ambigenti (Nyl.) sed notis allat' . satis distincta. 



Phylctis Boliviensis (Nyl.) 

 Corticola. 



Phlyctis capillaris (Stn.) 



Similis Ph. Andensi sed thallo pallide olivaceo, ambitu albo 

 et fibrillose byssino-radiante (K — ); sporse Snse incolores 

 crescenticse vel nonnihil spiraliter contortse, T-septatse, -034 — 

 •05 X '005 — -0065 mm. lodo gel. hym. non tincta, sed gel. 

 sub-hym. coerulescens. Corticola. 



Lecidea parvifolia, var. fibrillifera (Nyl.) 



Lecidea thaleriza (Stn.), sp. nov. 



Thallus cinereus vel lurido-cinerascens vel cinereo-virescens 

 rugulosus, concreto-squamulosus crassiusculus late expansus, 

 ambitu pallidus fibrillose byssino-radiatus (K — C — ) ; apothecia 

 intus pallida vel in sectione crassiuscula fulvescentia, sessilia 

 conferta rufo-fuscescentia vel fusco-rufa, mediocria plana, margine 

 pallidiori vel pallido obtuso cincta, demum convexa et fere 

 immarginata; sporae Snse incolores simplices cylindraceae, '01 — 

 •016 X circ. -003 mm.; paraphyses crassiusculae non bene dis- 

 tinctae conglutinatae apicibus concoloribus non clavatis ; hypothe- 

 cium lutescens vel lamina crassiuscula pallide rufescens. lodo gel. 

 hym. coerulescens dein vinose fulvescens. Corticola. Affinis L. 

 mauritianse (Tayl.) 



Lecidea styloumena (Stn.), sp. nov. 



Thallus albidus vel pallidus vel pallide cervinus (K fl. C fl.) 

 Isevigatus, glomerato-congestus aut cerebriformi-convolutus, a 

 columellis vel stipitibus extus hirsutulis confertis (alt. 4-12 mm.) 

 sustentatus; apothecia nigra primum innata demum sessilia, 



G 



