Sphseriaceae, Hyalodidymas, Diaporthe. 671 



obtusis, subcylindricis, rectis, subhyalinis, bi-cellularibus. quadri- 

 guttatis, ad septum medium haud constrictis, 12-14-3^2- 



Hab. in ramis siccis Pruni spinosae prope Miinster Gerraa- 

 nise (FiiisTiNc). 



216. D. Tetrastaga viridarii Sacc. Mich. II, p. 301. — A D. oligo- 2568 

 carpa Nits. differt ascis sporidiisque tertia parte majoribus, ostio- 



lis quandoque paululum extantibus, crassiusculis, obtusis (ascis sub- 

 fusoideis 70-80 ii 8-12; sporidiis ovato-fusoideis, 15-16 i;; 5, con- 

 stricto-1-septatis, utrinque obtusiusculis, 4-guttulatis, hyalinis). 



Hab. in ramis corticatis Pruni Lauro-cerasi, Padova, 

 Italia bor. (Bizzozero). 



217. D. Tetrastaga Rehmii Nits. Pyr. Germ. pag. 301. — Stromate 2569 

 plerumque late effuso raraulosque ambiente, cortici lignoque omnino 

 immerso, strato extimo, atro circumscripto, peridermio perithecio- 

 rum ostiolis erumpentibus, abbreviatis perforato vel fisso, ceterum 

 haud mutato nec decolorato, velato; peritheciis minutissimis, glo- 

 bosis V. pauUo depressis, in cortice interiore nidulantibus, ordine 

 subsequali denseque sparsis v. saepius 2-4 densius stipatis, in col- 

 lum tenuissimura, brevissimum abrupte attenuatis; ostiolis perexi- 

 guis nec elongatis, nunc singulatim, nunc 2-4 una erumpentibus 

 periderraiique lacinias arrectas haud superantibus; ascis anguste 

 clavatis v. subcylindricis, octosporis, plerumque 48-57^6-7; spo- 

 ridiis subdistichis vel oblique monostichis, subcylindricis, rectis, 

 hyalinis, bicellularibus, quadriguttatis, medio haud constrictis, per- 

 exiguis, 10-13 i^^Y^. 



Hab. in ramis tenuioribus Sorbi Aucupariae prope Su- 

 genheim Germaniae (Rehm). 



218. D. Tetrastaga Cerasi Fuck. Symb. myc. App. I, p. 319, Sacc. 2570 

 Myc. Spec. p. 138, t. XIII, fig. 53-55. — Stromate subcorticali, 

 late effuso lignoque atro circumscripto ; peritheciis in cortice inte- 

 riori nidulantibus, minutis, globosis, plerumque in gregibus orbi- 

 cularibus dispositis, ostiolis minutis, subcylindraceis, obtusis, atris, 



in corticis rimulis excavatis, atris orbicularibus irregularibusve 

 erurapentibus, epidermidera corticis non superantibus; ascis oblon- 

 gis, Ssporis, 20-55 ^ 8-9 p. sporif. ; sporidiis distichis, oblongo-fu- 

 siformibus, utrinque obtusis, sed minutissime acute appendiculatis, 

 4guttulatis, medio parura constrictis, hyalinis, 12-14^3,7-5. 



Hab. in ramis corticatis Pruni Avium etP. Cerasi in Ger- 

 mania et Italia boreali. — D. Rehmii et D. revellenti affinis. 



219. D. Tetrastaga Raveneliana Thiim. et Rehm, Fungi Amer. tri- 2571 



