684 Sphaeriaceae, Hyalodidymffi, Diaporthe. 



runique in corticis iaterioris parenchymate nidulantibus, rarius li- 

 gno supposito adnatis, immo ei insculptis, ordiue valde intequali 

 ordinatis, mox laxissime sparsis, mox 2-4 densius aggregatis, in 

 collum brevissirauni, tenue abrupte attenuatis ; ostiolis abbreviatis, 

 corticem perlbratum liaud superautibus; ascis oblongis v. subcylin- 

 dricis, membrana iucrassata structis, octosporis, 60-66 :; 9-iO; spo- 

 ridiis subdistichis, fusiforn)ibus, utrinque obtusiusculis, pleruraque 

 rectis, hyalinis, bicellularibus, bi-quadriguttulatis, medio septifero 

 tandem parum constrictis, 14-16^4. — Spermogonia phoraatoidea: 

 spermatiis fusoideis 8:s2,5, biguttatis, breviuscule stipitatis. 



Hab. in rarais emortuis Philadelphi coronarii in Ger- 

 mania Belgio et ItaUa. — Forma Deutzice scabrce Sacc. Mycol. 

 Spec. p. 139, t. XIII, f. 59-61: ascis 50^8; sporidiis 15 ^; 4. In 

 rarais Deulzia; in Italia bor. 



257. D. Tetrastaga Laschii Nits. Pjr. Germ. p. 292, SphceHa ro- 2609 

 stellaia Lasch. (nec Auct.). — Stromate latissime effuso, ramos 

 ambiente, toto iu) ato, undique nigrolimitato, corticis interioris su- 

 perficiem nigrificante, peridermio, peritheciorum ostiolis perforato, 

 iramutato obducto; peritheciis in corticis parenchyraate nidulanti- 

 bus, majusculis, e globoso mox parum corapressis, in collum per- 

 tenue abrupte attenuatis, ordine ingequali, plerumque laxe sparsis ; 

 ostiolis e basi saepe conico-dilatata cylindricis, crassiusculis, parum 

 tantura elongatis, per periderraii foraraina rainuta singulatira vel 



in rirais longitudinaliter directis ordine lineari pluribus erurapen- 

 tibus, sed inter se distantibus, paullo tantura v. vix exserti ; ascis 

 clavatis v. oblongis, octosporis, 34-00^:6-8; sporidiis distichis v. 

 oblique raonostichis, fusiforraibus, utrinque obtusiusculis, pleruraque 

 rectis, hyalinis, medio haud constrictis, quadriguttatis bi-cellula- 

 ribus, 10-16 s 3-4. — Spermogonia Phomam foveolarem (Fr.) 

 sistunt. 



Hab. in rarais eraortuis Evonymi europaei in Germania, 

 Britannia, Gallia. Italia. 



258. D. Tetrastaga importata iSits. Pyr. Germ. p. 415. — Stromate 2610 

 mox breviter effuso, mox ramulos ambiente, peritheciis coalescen- 

 tibus subinde valseura .'oraulante, quoad immersum strato nigricante 

 circumscripto, peridermio adha-rente, haud decolorato, tecto; peri- 

 theciis perexiguis, e globoso plus rainus depressis, corticis strato 

 infirao immersis tandem saepe ligno supposito basi applanata adna- 



tis, ordine ina?quali dispositis, saepissime vero 2-6 valseo niodo sti- 

 patis, tunc parum protuberantibus pustulasque rainutas peridermio 



