Sphjeriaceas, Hyalodidymse, Diaporthe. 689 



/T^a^. in ramiilis siccis, adhuc stantibus Carpini Betuli prope 



(Estrich Germanias. — Cl. Rehm ad hanc speciem ducit dubitan- 



ter meam D. decipieniem (quse D. nigroannulata Kunze!); sed 



res iterum inquiri meretur. 



270. D. Tetrastaga castaneti Nits. Pyr. Germ. p. 320, Sacc. Mich. 2622 

 I. p. 249. — Stromate plus minus late efifuso, raox ramos ramu- 

 losque longe arabiente, mox contra multo breviore, areas minutas 

 tantum occupante sed plerumque dense approximatas, cortici ac 

 ligno omnino inculpato eorumque substantiam lineis atris marmo- 

 rante, periderraio adhaerente, peritheciorura ostiolis cribrose perfo- 

 rato tecto; peritheciis parvulis, subglobosis v. depressis, mox or- 

 dine subsequali ordinatis, mox 2-5 in raodura vaiseura dense sti- 

 patis, in cortice interiore nidulantibus, rarius altius infossis, turic 

 basi tantum v. omnino ligno infossis, in coUum breve v. brevissi- 

 mum attenuatis; ostiolis erurapentibus plus minus exsertis obtu- 

 siusculis; ascis fusoideis, aparaphysatis, 70-80 i:; 10, Ssporis; spo- 

 ridiis, distichis, fusoideis, constrictis, tenuiter 1-septatis, 15-18 s 

 4-5, utrinque obtuse attenuatis, rectis v. curvulis, 4-guttulatis, 

 hjalinis. 



Hab in ramulis emortuis Castaneae vescae in Gerraania et 

 Italia boreali. 



271. D. Tetrastaga plthya Sacc Fungi Ven. Ser. IV. p. 7. — Stro. 2623 

 mate raraulos hinc inde breviter ambiente lineaque nigra tortuo- 



sa per corticem lignumque non mutatum excurrente limitato; pe- 

 theciis discretis in cortice immutato nidulantibus, sphneroideis, Y^-Vs 

 mill. diam., intus fuscidulis, ostiolo brevi epidermidera vix supe- 

 rante, crassiusculo, rotundato; ascis oblongo-fusoideis, 50-55^:6-7 

 Ssporis; sporidiis pleruraque distichis, raro oblique monostichis, fu- 

 soideis, hyalinis, 10-12 ijSy^-^, 4-guttulatis, non v. vix medio 

 constrictis. 



Hab. in ramulis putrescentibus Abietis excelsae, Selva pr. 

 Treviso Ital. bor. — Rarauli imrautati manent, neque fungillus de- 

 tegitur nisi raraus findatur. Diaporthi oligocarpce et D. minuice 

 affinis videtur. 



272. D. Tetrastaga quadrinucleata (Curr.) Sacc. Sphceria quadrinu- 2621 

 cleata Curr. Linn. Trans. XXII, p. 325, t. 58, f. 90. — Perithe- 

 ciis minutis, subglobosis ; ostiolis maramillatis, peridermium perfo- 

 rantibus; sporidiis biseriatis, stipatis, anguste oblongis utrinque 

 acutiusculis v. obtusiusculis, 4-nucleatis, hyalinis, 15 a. long. 



Hab. in ramis corticatis, VV^eybridge Britannife. 



44 



