— 506 — 



octospori ; sporidia obliqvie monosticha fusiformia v. 

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

 dice setulitbrmi (15-25 X 1-2/') recta v. subflexuosa at- 

 tenuato-producta, eguttulata opace fuliginea. Species 

 etiam praedistincta omnium partium fabrica ad RoselU- 

 niam, sectionis Fassiellae, vergens. 



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



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

 ciis globosis exertis dense constipatis, ostiolis niinutis areo- 

 lato-applanatis efformatum; sporidia minuta navicularia 

 fuliginea. 



Hab. Ad corticem ramorum putrescentium in sylvis prope 

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



Obs. Perithecia dense constipataatra globosa (400-500 vdm.) 

 stromate concolore parco j uñeta, puhinulos irregulares 

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

 nulos ambitu non effusosefficientia, superneplusminusve 

 exerta atque ostiolo minute papillulato, areola discoidal i 

 impressa plana concolore, vix sub lente perspicua, ruga 

 gracillimalimitata cincto coronata, carbonacea opaca sub- 

 laevia ; asci octospori mox diffluentes ; spoiidiaoblique v. 

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

 que obtusiuscula opace fuliginea. 



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



Diacj. Irregulariter glomerulosum, stromate plus minusve 

 evoluto, peritlieciis 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 solitaria quandoque 5-30-glo- 

 merulata recta v. obliqua stromate plus minusve evoluto 

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



