638 Sphaeriaceae. Hyalodidymae, Diaporthe. 



gatas, fere parallelas, rectiiisculas v. varie flexuosas densius ordi- 

 natis, in collum brevissiraum subito attenuatis; ostiolis nunc peri- 

 dprmium pertoratum v. rimose fissum vix superaiitibus nunc pa- 

 rum elongatis, conicis, crassiusculis, solitariis v. 3-8 ordine linea- 

 ri dense stipatis ac conjunctim erumpentibus; ascis anguste oblon- 

 gis V. subclavatis, octosporis, 52-60^8-9; sporidiis distichis, raro 

 monostichis, anguste oblongis v. subcylindricis, utrinque obtusis, j 



bi-cellularibus. quadriguttatis, tandem parum constrictis v. toru- * 



losis, hyalinis, 10-15-3-4. 



Hab. in ramis emortuis Aceris carapestris in Gerraania, 

 Britannia. Italia bureali. 



110. D. Euporthe petiolorum Sacc. et Sp. Mich. 1, p. 388. — Stro- 2462 

 mate petiolis plagulas oblongas nigras hinc inde efficiente, linea- 

 que nigra intus limitato; peritheciis ligno infossis, gregariis, glo- 

 bulosis, ' 3 mill. diam., ostiolo cylindraceo perforante et parum 

 exerto; ascis fusoideis, 50-55 ^; 6-7, aparaphysatis, octosporis ; spo- 

 ridiis distichis, oblongis, 12-14 ::; 3-3^2. constricto-1-septatis, 2-4- 

 guttulatis, hyalinis. 



Hab. in petiolis languidis Catalpae s y r i ngi fol iae, Cone- 

 gliano, Ital, bor. 



111. D. Euporthe nigrlcolor Nits. Pyr. germ. p. 260 Sacc. Myc. Ven. 2463 

 Spec. p. 141. t. XIII, fig. 68-71. — Stromate plus minus late ef- 

 fuso, ramulos ambiente v. syepius maculis brevioribus, irregulari- 

 bus varie confluentibus marmorante, primo peridermio relaxato, 

 ostiolis perforato tecto, deinde in plerisque nudato, superficieque 

 atrato intus vero strato tenuissimo, atro circurascripto; peritheciis 

 exiguis, e globoso raox depressis, sectione verticali ovalibus, ligno 

 suprerao oranino imraersis nec protuberantibus laxe sparsis, in col- 

 lum abrupte attenuatis; ostiolis e basi sensim conico-incrassatis 

 tenuissime cylindricis. plus minus sed pleruraque parum tantum 

 elongatis; ascis anguste clavatis, oblongis v. subcylindricis, octo- 

 sporis, 53-56 i; 7-9; sporidiis subdistichis, rarius oblique monosti- 

 chis, fusiformibus, bicellularibus, bi-quadriguttatis, medio constrictis, 

 utrijique acutiusculis, subhyalinis, 16i;5. Spermogonia nota. 



//a^. in ramis emortuis Rhamni Frangula3 in Germania et 

 Italia boreali. 



112. D. Euporthe meridlonalis Sacc. Mich. I, p. 387. — Stroraate ra- 2464 

 mos corticatos vario ambiente, lineaque tortuosa iiigra per lignum ij 

 excurrente limitato; peritheciis globulosis, ligno infossis, % mill. I 

 diara., ostiolo peridermium perforante vix eraergente; ascis fusoi* 



