March, 1921.1 LICHEyES AB A. YASUDA m JAPONIA COLLECTI. 51 



rotundato cpnvexo, integro aut verrucnloso, thallo concolore. Hypo- 

 thecium albidutn. Hymenium circ. 0,1 mm crassum, jodo persistenter 

 carulescens. Epithecium dilutissime subrufescens. Paraphyses arete 

 coheerentcs, crass. 0,0015 mm, apice leviter incrassata, increbre septata;. 

 SporcTe S-nae, subdisticha, decolores, simplices, ellipsoidere, apicibus 

 rotundatis, long. 0,010-0,008, crass. 0,007-0,005 mm. Affinis L. 

 glaucolutescenti Nyl. et L. glaucodepe Nyl. 

 Prov. Kozuke (354). In rupe. 



37. Lecanora conspersa Wain. (sp. n.). 



Thallus modice incrassatns, areolatus, areolis contigiiis aut dis- 

 persis, vulgo leviter aut demura bene convexis, flavido-stramineis, 

 Igevigatis, subnitidis, esorediatis, hypothallo indistincto. Apothecia 

 lat. 0,7-0,5 mm, sparsa, tenuia, basi leviter constricta, disco piano, 

 testaceo- aut rufescenti-testaceo, nude, subnitido, lasvigato, margine 

 tenui, leviter crenulato, baud prominente, thallo concolore. Epithecium 

 rufescens. Sporje S-n^e, decolores, simplices, ellipsoidere, apicibus 

 rotundatis, long. 0,010-0,009, crass. 0,007-0,005 mm. Affinis L. 

 perspersse Nyl. et L. chlorophasodi Nyl. 



Prov. Kozuke (339). In rupe. 



38. Lecanora pseudisterella Wain. (sp. n.). 



Thallus crassus aut modice incrassatus, contintius aut areolatus 

 aut deraum rimoso-diffractus, verruculoso-injequalis, albido-cinerascens 

 vel subalbidus, sat opacus, KHO flavescens. Apothecia lat. 0,7-0,4 

 mm, primum subimmersa, demuni emergentia et basi levissime con- 

 stricta, tenuia, disco piano aut leviter convexo, rufo, nudo, opaco, 

 Isevigato, margine tenui, baud prominente, subintegro, albido. Hypo- 

 thecium albidum. Hymenium jodo persistenter caerulescens. Epithecium 

 rufescens. Sporae 8-nae, distichae, decolores, simplices, ellipsoideae, 

 apicibus rotundatis, long. 0,010-0,007 (—0,013 mm, observante 

 Yasuda), crass. 0,007-0,005 mm. Proxima est L. galactinizse Nyl. 

 (Cromb. Lich. Cap. p. 173), quae apotheciis adhxic minoribus et 

 thallo tenuiore ab ca differt. L. pseudistera Nyl. apotheciis paullo 

 majoribus ab his recedit, at minoribus quam ia L. campestri (ScH^R.) 

 instructa est. L. expansa (AcH.) sec. herb. AcH. apotheciis fere sicut 

 in L. pseudistera Nyl. et ab ea vix distinguenda. 

 Prov. Iwashiro, raons lide (318). In rupe. 



39. Lecanora subimmergens Wain. (sp. n.). 



Thallus modice incrassatus, laevigatus, areolato-diflfractus, areolis 

 minutis, albido-cinerascens, opacus, KHO lutescens, dein fulvescens, 

 hypothallo indistincto. Apothecia lat. 0,8-0,5 mm, diw immersa, 



