Pyrenomycetse, Sphseriacea?, Hyalophragniise, Metasphaeria. 699 



15. Metasphaeria Petasitidis Feltg. Vorstud. Vorst. Pilz. Luxemb. 2389 

 Nachtr. III, p. 238. — Peritheciis epidermide inuatis et per cu- 

 ticulam conspicuis, demum subliberis, globoso-depressis, ostiolo bre- 

 viter cylindraceo emergente; ascis .... non visis; sporidiis ob- 

 tuse fusiformibus, rectis curvulisve, medio constricto-1-septatis, 

 plerumque 4-guttulatis et tandem 3-septatis, liyalinis, 18-24 « 5-5,5. 



Hab. in petiolis siccis Petasitidis off icinalis, Luxemburg. 



16. Metasphaeria Silphii Ell. et Ev. in Journ. of Mycol. 1903, p. 167. 2390 

 — Peritheciis gregariis, subcuticularibus, ovatis, rugulosis, ostiolo 

 papillatis, dein collapsis, cyathiformibus, 150-200 \l. diam. ; ascis 

 cylindraceis vel clavato-cylindraceis 45-55 « 6-7, subpedicellatis, 

 paraphysatis; sporidiis distichis, fusoideo-oblongis 2-3-septatis, ad 

 septa constrictis, 12-16 « 3,5-4, subbrunneis. 



Hab. in caulibus emortuis Silphii integr if ol i i, Rooks Co., 

 Kansas Amer. bor. 



17. Metasphaeria sanguinea Ell. et Ev. in Journ. of Myc. 1902, 2391 

 p. 68. — Peritheciis subcuticularibus, sparsis vel 2-3 congestis, 

 membranaceis, dein collabentibus circ. 200 \i. diam., sanguineo- 

 rubescentibus, ostiolo papilliformi donatis; ascis clavato-cylindra- 

 ceis 50-70 « 7-8, paraphysatis ; sporidiis (raro monostichis) distichis 

 constricto-ellipticis vel subfusoideis, hyalinis 4-nucleatis, 3-septa- 

 tis, 15-18 « 14. 



Hab. in caulibus emortuis Helenii tenuifolii, Alabama 



Amer. 



18. Metasphaeria Cirsii Feltg. Vorstud. Pilz. Luxemb. Nachtr. III, 2392 

 1903, p. 239. — Peritheciis gregariis vel sparsis, immersis, globo- 

 so-depressis, 100-200 p.. diam., nigris, papilla globulosa emergentc; 

 ascis cylindraceis breve stipitatis 122-136 * 7-8; paraphysibus fi- 

 liformibus, superatis, octosporis; sporidiis monostichis, filiformibus, 

 obtusis, rectis vel curvulis, 3-septatis, septo medio ovidentiore 

 ibique constrictis, hyalinis, 6-guttulatis, 21-26 « 5-6. 



Hab. in caulibus siccis Cirsii arvensis, Luxemburg. — Pr;r- 

 cipue ascis anguste cylindraceis distinguenda species. 



19. Metasphsria Petraeae Pat. in Duss Enum. Champ. Gruadel. 1903, 2393 

 p 71. _ Peritheciis solitariis, sparsis, punctiformibus, nigris, cel- 

 lulosis, molliusculis, sub cute dein radiatim fissa nidulantibus ; asoia 

 cylindraceis, in stipitem attenuatis, 105 w 10, octosporis, filiformi- 

 paraphysatis; sporidiis fusoideis, rectis, incoloribus, medio constri- 

 ctis, utrinque acutatis, obscure 1-septatis et 6-8-guttulatis, 20 * 6. 



Hdb. in foliis emortuis Petrasa' volubilis, llavino-Souliee 



