March, 1921.1 LIOHENES AB A. YASIJDA IN JAPONIA COLLEO TL 55 



Thallus et discus KHO non reagens (etiam in orig. Nyl.)- 

 Prov. Kozuke (360). In rupe. 



57. Pertusaria subfallens Wain. (sp. n.). 



Thallus modice iticrassatus, Isevigatus aut partim rugosus, cinereo- 

 glaucescens, leviter nitidus, . 'KHO addito CaClaO-, intus lutescens. 

 Psendostromata KHO addito CaCl202 extus et intus lutescentia, 

 apothecia solitaria aut raro plura continentia. P. commuiatee et P. 

 variolosa subsimilis. 



Prov. Kozuke, mons Akagi (294, 297). Ad corticem arborum. 



58. Pertusaria yelatula Wain. (sp. n.). 



Thallus modice incrassatus, sat lasvigatus aut inaequalis, albido- 

 glaucescens aut cinerascens, parum nitidus, KHO non reagens, at 

 addito CaCl202 lutescens et demum rubescens. Pseudostromata apo- 

 thecia solitaria continentia, KHO non reagentia, at addito CaCl202 

 intus lutescentia et demum rubescentia. Spora? solitarite, oblongae, 

 long. 0,140-0,160, crass. 0,035-0,045 mm, membrana haud striata 

 (observante eel. Yasuda). Affinis P. velatse. 



Prov. Kozuke, mons Akagi (295). Ad corticem arboris. 



59. Pertusaria yaginatula Wain. (sp. n.). 



Thallus modice incrassatus, sat Isevigatus, cinerascens, nee jodo, 

 nee KHO, nee CaCUO-i reagens. Pseudostromata apothecia solitaria 

 aut pauca continentia, intus KHO addito CaCljOi leviter rubescentia. 

 Affinis P. suhvaginatae Nyl. 



Prov. Kozuke, mons Akagi (299). Ad corticem arboris. 



60. Pertusaria leucosora Nyl. 



Prov. Kozuke, mons Nabewari (301). In rupe. 



61. Pertusaria (Porophora) pustulata (Ach.) Nyl. 

 Prov. Inaba (176). Ad corticem arboris. 



62. Pertusaria stenostoma Wain. (sp. n.). 



Thallus tenuis, sat Isevigatus aut leviter verruculoso-insequalis, 

 albido-cinerascens, nee KHO nee CaCloOo reagens. Pseudostromata 

 sat crebra, verrucas formantia subhemisphaericas ant difformes, 0,5- 

 1,2 mm latas, basin versus leviter dilatatas aut sat abruptas, 

 apothecia solitaria continentia aut rarius. 2—3 confluentia, nee KHO 

 nee CaCl202 reagentia, disco leviter impresso, nigricante, anguloso- 

 rotundato aut stepe oblongo difformive, lat. 0,1-0,15, long. 1-0,1 

 mm. Sporse 8-nas-2-nae, oblongs, long. 0,064-0,080, crass. 0,026 

 mm, membrana 0,003-0,004 mm crassa, haud striata. Facie externa 

 P. pustulatam in memoriam revocans. 



Prov. Hoki, mons Daisen (173). Ad corticem arboris. 



