128 



octospori ; sporidia obliqiic monosticlia fusiformia v. 

 elongato-navicularia (100 X 12-14 y) utrinque in appen- 

 dice setuliformi (15-25 X '-2 ^) recta v. subilexuosa at- 

 tenuato-producta, eguttulata opace fuliginea. Species 

 etiam praedistincta omnium partium fabrica ad Roselli- 

 niam, sectionis Fassiellae, vergens. 



253. Hypoxylon apiahynum Speg. (n. sp.) 



Diag. Subcrustaceo-effusum atrum^stromate parco, perithe- 

 ciis globosis exertis dense constipatis, ostiolis minutis areo- 

 lato-applanatis efformatum ; sporidia minuta navicularia 

 fuliginea. 



Hab. Ad corticem ramorum putrescentium in sylvis prope 

 Apiahy, Jun. 1881 (sub n. 1655). 



Obs. Perithecia dense constipataatra globosa (400-500 /^dm.) 

 stromate concolore parco juncta, pulvinulos irregulares 

 (1-2'" dm.) superficiales saepe confluentes parum promi- 

 nulos ambitu non effusosefficientia, superneplusminusve 

 exerta atque ostiolo minute papillulato, areola discoidali 

 impressa plana concolore, vix sub lente perspicua, ruga 

 gracillima limitata cincto coronata, carbonaceaopacasub- 

 laevia ; asci octospori mox diffluentes; sporidiaoblique v. 

 recte monosticha elliptico-navicularia (8-9 X 4 //) utrin- 

 que obtusiuscula opace fuliginea. 



254. Hypoxylon chionostomum Speg. (n. sp.) 



Diag. Irregulariter glomerulosum, stromate plus minusve 

 evoluto, peritheciis globosis plus minusve exertis, ostiolis 

 obtuse papillatis subtruncatis disco albodonatis ; sporidia 

 elliptica fuliginea. 



Hab. Ad corticem dejectum putrescentem in sylvis prope 

 Apiahy, Jun. 1888 (sub n. 2858). 



Obs. Perithecia quandoque sohtaria quandoque 5-30-glo- 

 merulata recta v. obliqua stromate plus minusve evoluto 

 juncta, exerta v. plus minusve immersa globosa (900- 



