67S Sphrrriaceae, Hyalodidyniae, Diaporthe. 



238. D. Tetrastaga dubia Nits. Pyr. Germ. p. 316. — Stromate la- 2590 

 tissime effuso, ramos loiige ambiente eorumque cortici lignoque sup- 

 posito toto immerso et nigrolimitato, peridermio adhaerente, im- 

 mutato tecto; peritheciis magnitudine media, globosis, exsiccando 

 plerumque collapsis, corticis strato supremo infossis, peridermio de- 

 tracto adhserentibus, ordine inaequali ordinatis, saepissime vero 3-6 



in modum valseum dense stipatis; collis brevissimis, tenuissimis, 

 ostiolis minimis per peridermii poros perexiguos erumpentibus, haud 

 extantibus; ascis clavatis v. oblongis, octosporis, 52-72^:8-9; spo- 

 ridiis subdistichis, oblongis, utrinque obtusiusculis, rectis, subhya- 

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

 constrictis, 12-16 s 4-6. 



Hab. in cortice ramulorum Aceris Negundinis, Hoxter 

 Germanife, Conegliano Ital. bor. — Dmporthc Lehiseyi (Desm.) 

 Niessl vere diversa est. An Phoma Lebiseyi Sacc. huic vel D. du 

 bice, ut spermogonium, pertineat statuere nequeo. 



239. D. Tetrastaga blepharodes (B. et Br.) Sacc. Sphceria blepha- 2591 

 rodes B. et Br. in Ann. N. H. n. 978, t. 17, f. 31. — Peritheciis 

 tectis, depresso-globosis ; ostiolis peridermium pcrforantibus peri- 

 thecio duplo longioribus; ascis clavato-fusoideis ; sporidiis biseriatis, 

 fusoideis, in aequilateralibus, guttulatis, 12-13 u. longis. 



i/a^. in ramulis Aceris Pseudoplatan i, Mossburnford Bri- 

 tanniae (A. Jerdon). 



240. D. Tetrastaga Beckhausii Nits. Pyr. Germ. p. 295. D. circum- 2592 

 scripla Fuck. Fung. rhen. 1991 (nec Otth). — Stromate latissime 

 effuso, ambiente ramos ssepissime integros occupante, substrato toto 

 imraerso, strato extimo, profunde descendente, nigro-Iimitatis, cor- 

 ticisque interioris superficiem demum nigrificantibus; peritheciis 

 rainimis, cortici interiori totis infossis, ordine fere aequali densis- 

 siraeque sparsis, globosis v. paullum depressis, in collum brevis- 

 simum, tenue subito attenuatis; ostiolis per peridermii poros exi- 

 guos singulatim erumpentibus, mox brevissirais, paullo tantuni' v. 



vix exertis, mox plus rainus elongatis, e basi conica cylindricis, 

 crassiusculis, rectis v. obllquis; ascis anguste oblongis v. subcylin- 

 dricis, octosporis, 45-56 s 7; sporidiis angustissime fusiformibus, 

 subcylindricis, hyalinis, quadriguttatis, denique bi-cellularibus, 

 rectis v. rarius insequilateralibus, utrinque saepe acutiusculis, 10- 

 14:; 3-4. — Spermogonia phomatoidea: spermatiis anguste filifor- 

 mibus 10-12 sl. incurvis. 



