July 1918.] LICHENES AB A. YASTJDA IN JAPONIA COLLECTI 161 



brana tenui. 



Prov. Hoki, mt. Daisen (54). Ad rupem. 



56. Lecidea Tiliae Wain. (sp. n.). 



Thallus sat tenuis, leviter verruculoso-ina;qualis aut sat laevigatas, 

 vulgo subcontinuus, albidus, KHO lutescens, dein fulvcscens, gonidiis 

 cystococcaceis. Apothecia adnata, lat. 0,5-0,^3 mm, tenuia, vulgo sat 

 crebra, basi parum constricta, disco piano, nigricante aut raro 

 fuscescente, nudo, opaco, margine tenui, haud prominente, disco 

 concolore, integro, persistente aut demum excluso. Hypothecium 

 pallidum aut albidum. Hymenium jodo persistenter crerulescens. 

 Epithecium olivaceum aut raro aeruginosum. Perithecium in margine 

 fuscescens, ceterum fuscescenti-pallidum, ex hyphis radiantibus, congluti- 

 natis formatum. Paraphyses sat laxe eohaerentes, simplices, crass. 0,0015 

 mm. apice clavato-incrassatae. Sporas 8-na, distichae, decolores, 

 ellipsoideae, apicibus rotundatis, simplices, long. 0,011-0,013, crass. 

 0,006 mm. 



Habitu similis Lccideas Pruni. Prov. Rikuzen, Sendai (93). Ad 

 corticem Tiliae Miquclianae. 



57. Thelotrema sendaiense Wain. (sp. n.). 



Thallus sat tenuis, leviter verruculoso-inasqualis aut minore parte 

 sat kevigatus, glaucocinercus, leviter nitidus, KHO flavescens deindeque 

 sordidc olivaceo-rubescens. Excipulum verrucam formans hemispha^ri- 

 cam, 0,7-0,8 mm latam, leviter verruculoso-inaequalem aut laevi- 

 gatam, basi demum abruptam aut constrictam, vertice vulgo demum 

 impresso, margine ostiolari haud prominente, ostiolo punctiformi. 

 Apothecia sparsa aut sat crebra. Perithecium fulvescens, lateralc, 

 columella nulla. Epithecium decoloratum. Sporae solitaria:, decolores, 

 murales, oblongs, aj)icibus rotundatis aut alter o apice obtuso, long. 

 0,130-0,180, crass. 0,030-0,040 mm, jodo violascentcs. 



Th. cinereo MiJIX. Arc. afhue. Prov. Rikuzcn, Sendai (82 pr. p.). 

 Ad corticem arboris. 



{58. Thelotrema bicayatum Nyl. 



Prov. Kozukc, ml. Akagi (98). Ad corticem arboris. 



59. Graphis (Graphina) inabensis Wain. (sp. n.j. 



Thallus modice incrassatus, sat laevigatas, obscure glaucocinercus, 

 leviter nitidus, KHO fuscescens. Apothecia vulgo sat crebra, long. 

 4-1 mm. lat. 0,2-0,3 mm, vulgo leviter prominentia, basim versus 

 sensim dilat a la. apicibus acutis aut obtusis, leviter curvata aut recta, 

 raro bene curvata. simplicia aut parcins fuivata. labiis tliallo con- 



coloribus aut margine sordidc albidis, laevigatas, contiguia aut demum 



