C80 Sphzeriacese, Hyalodidymap, Diaporthe. 



limitato, peridermio arcte adh.nprente, haud decolorato iecto: pe- 

 ritheciis parvulis, subglobosis v. l)asi applanutis, ordine vario di- 

 spositis, sa^pius pluribus aggregatis, vertice plerumque paruni pro- 

 tuborantibus, pustulas ininima>, poridermio obductas formantibus, 

 basi contra ligno supposito plus minus alte immersis; ostiolis cras- 

 siusculis, abbreviatis sed peridermium poris exiguis perforatum 

 Seepe parum superaistibus; ascis oblongis, rarius clavatis, octospo- 

 ris, 50-60 :; 9-12; sporidiis distichis v. conglobatis, fusiformibus 

 v. subcjMindricis, utrinque obtusiusculis v. rotundatis, rectis, hya- 

 linis, bicellularibus, bi-quadriguttulatis, medio septifero constrictis, 

 12-16^4-5. — Spermogonia phomatoidea: spermatiis obtuse fa- 

 soideis, 6-8 ^^^y^, biguttatis, longiuscule stipitatis. 



Hab. in trunculis ramisque Symphoricarpi racemosaein 

 Gerniania, Belgio, Britannia, Italia. 



245. D. Tetrastaga Rhois Nits. Pyr. Germ. p. 315. — Stromate ple- 2597 

 rumque rainulos longe ambiente substrato toto innato, strato ex- 

 timo nigricante cincto, peridermio adhaerente, peritheciorum ostio- 



lis perforato, ceterum iinmutato velato; peritheciis miuimis, glo- 

 bosis V. depressis in corticis interioris parenchymate nidulantibus, 

 ordine iniequali sparsis, collo brevi, ostiolo minutissimo, perider- 

 raium perforatum haud superante instructis; ascis oblongis v. cla- 

 vatis, octosporis, 64^:10-12; sporidiis subdistichis, v. oblique mo- 

 nostichis, oblongis, utrinque obtusis, hyalinis, rectis, bicellularibus, 

 quadriguttulatis, medio septifero constrictis, 16 s 5-6. 



Hab. in ramulis emortuis Rhois Cotini in Horto botanico 

 Miinster Germaniae. — Teste Niessl, huc spectaret Valsa Rhois 

 Cooke (Cfr. Syll. nostra n. 2382), quod vero uiterius est inqui- 

 rendum. 



246. D. Tetrastaga retecta (Fuck. et Nits.) in Nits. Pyr. Gerra. 2598 

 pag. 304. — Stromate late effuso, ramulos enecatos ambiente sub- 

 strato omniuo immerso strato extimo nigricante circumscripto , 

 corticis strato supremo immutato primo velato, deinde, illo hrnc 

 inde secesso, maculis tandem aterrimis, plerumque minutis corti- 

 cem interiorem marmorante; peritheciis perexiguis, e globoso, plus 

 minus depressis. ordine vario sed plerumque laxe sparsis, cortici 

 insculptis, in collum brevissimum subito attenuatis; ostiolis mini- 

 mis, nbbreviatis, punctiformibus; ascis anguste clavatis, v. subcy- 

 lindricis, octosporis, 00-63:; 6-7; sporidiis subdistichis, subcylin- 

 dricis, utrinque obtusissimis, rotundatis, subj^alinis, bi-cellularibus, 



