April, 1921.] LICHENES AB A YASUDA IN JAPONIA GOLLECTI. 79 



0,15 mm latis, stramineis increbre inspersus, ceterum laevigatus. 

 Apothecia sat crebra, thallo substratoque immersa, demum verrucas 

 leviter prominer.tes, 0,4-0,3 mm latas, basin versus sensim dilatatas, 

 thallo obductus, demum cinereo-nigricantes formantia, ostiolo minutis- 

 simo, Perithecium globosum, fuligineum, integrum. Sporae oblongo- 

 fusiformes, apicibus obtusis, fumoso-obscurata;, S-septatae, loculis 

 apicalibus minoribus, long. 0,026-0,028, crass. 0,011-0,013 mm, obser- 

 vante eel. Yasuda long. 0,030 mm.— Sporis majoribus a P. aspistea 

 AcH. differt. 



Pro v. Kii (343). Ad corticem Ilicis Otherae. 



181. Leptosphseria akagiensis Wain. (sp. n.). 



Gonidiis destituta ad Fungos pertinet. Thallus macula cinereo- 

 albida indicatus. Apothecia dispersa, verrucas formantia hemi- 

 sphaericas, 0,4-0,3 mm latas, nigras, nitidas, uudas, margine ostiolari 

 leviter conoideo-prominente, ostiolo minutissimo. Perithecium fusco- 

 fuligineum, hemisphaericum, integrum aut basi tenue, hyphis e basi 

 excrescentibus nigricantibus, 0,003 mm crassis. Nucleus jodo non 

 reagens, metaplasmate ascorum rubescente. Paraphyses numerosae, 

 ramoso-connexae. Asci fusiformes, long. circ. 0,080, crass. 0,013 mm, 

 membrana sat tenui. Spor^ S-nte, distichae, diu decolores, demum 

 fumoso-obscurata;, fusiformi-oblongae, apicibus obtusis, 1-septatae, 

 medio leviter constricta;, long. 0,037-0,044, crass. 0,007-0,008 mm, 

 membrana tenui. 



Prov. Kozuke, mons Akagi (237). Ad corticem arboris. 



182. Stereocaulon tenellum Tuck. Wilkes Exp. p. 123. Lepro- 

 caulon tenellum Nyl. Lich. Jap. p. 19. 



Prov. Kozuke, mons Nabewari (139). Ad rupem in caverno. 

 Ster. 



Helsingfors, 1 Maji 1920. 



