392 



disco subcirculari, osliolis numerosis parum emergentibus 

 punctulato, epidermide rupta arcte cincto; peritheciis 

 minutis l / 3 mill. diam. , monostichis, globulosis, nigris 

 intus et extus collis cylindraceis convergentibus, zona, 

 stromatica nigra per corticem et lignum excurrente, 

 acervulos varie circumscribente ; ascis fusoideis, subses- 

 silibus, 70-75 =* 8-10, lumine apice bifoveolato, octo- 

 sporis, aparaphysatis ; sporidiis distichis v. oblique mo- 

 nostichis, fusoideis, rectis curvulisve, 15 * 3-4, utrinque 

 acutiusculis, 4-guttatis, simulateque l-(v. raro 3-) se- 

 ptatis, non v. lenissime medio constrictis. 



Hab. in cortice ramorum majorum Aceris Pseu- 

 doplatani a Feletto Jan. 1878 (Spegazzini) , in 

 Styria (Gr. v. Niessl, nomine Wryptosporce Hystricis 

 Fckl). 



Obs. A Diaporthe Hystrice (Tode?) Sacc. F. V. 

 ser. IV. 6, sporidiis muticis, a Cryptosp. Hystrice 

 Fckl. sporidiis brevioribus et crassioribus, ostiolisque 

 curtis, et a Mamiania Ilystrice DNtrs sporidiis utrin- 

 que attenuatis nec rotundatis prse ceteris diversa. 

 1 04 . Diaporthe (?Sclerostroma) Hystricula S. & S. Stro- 

 mate nullo manifesto ; peritheciis hinc inde in acervulos 

 minutos aggregatis v. subsparsis, cortice nidulantibus, 

 globulosis, l / 2 mill. diam. nigris, peridermio secedenti 

 adhserentibus et basi dein cupulato-collapsis, ostiolis 

 peridermiurn fasciculatim perforantibus , capillaceis, l / L , 

 mill. lgs. ; contextu perithecii distincte parenchymatico 

 rufo-fuligineo ; ascis fusoideis, utrinque acutis, 40-45 * 

 6-7, lumine bifoveolato, aparaphysatis, octosporis ; spo- 

 ridiis oblique monostichis v. distichis, fusoideis recti- 

 usculis, spurie 1-septatis, 4-(v. pluri-) guttulatis, 12- 

 14v2 l / 2 , hyalinis, initio utrinque appendiculatis , dein 

 muticis. 



Ilab. in cortice Aceris campestris ramorum, a 

 Conegliano, Martio 1877 (Spegazzini). 



Obs. Species praedistincta, nonnullis notis Gnomoniis 

 affinis. Ad sectionem Tetrastagon ob perithecia sa^pe 

 sparsa pari ferejureduci pot.est. Linea stromatica sem- 

 per deest ut in Diap. rostellata (Fr.) Nke. 



