PyrenomyceUe, Sphseriaeese, PhseodictyaB. Pleospora. 601 



vel hinc inde laxe '2-5-aggregatis, amphigenis, parenchymate im- 

 mersis, globosis, 150-160 f/.. diam., ostiolo vix papillato epidermi- 

 dem perforante ejusdemque superliciem attingente sed non exserto 

 coronatig, membranaceo-coriacellis, contextu subpelluoido parenchy- 

 matico fuligineo atro donatis ; ascis cylindraceis, antice rotundatis, 

 posticG breviter cuneato-pediceJlatis, octosporis, apargphysatis; spo- 

 ridiis oblique mono- vel distichis, ellipsoideis, rectig v. subcymbsp- 

 formibus, utrinque acutiuscule rotundatis, trisoj^latip, ud hepbmn 

 medium valde constrictis, ad cetera lenissime, lorulis duobus c^n- 

 tralibus saepe septo altero tenuiore transversali divisis. lo^^ulo cen* 

 trali infero, rarius supero etiam, septo tongitudinali partito, oli- 

 vaoeis, locuhs extimis pailidioribus, muco destitutis. 



Htib. ad folia languida, rarius in vaginis vetusrioribus Sac- 

 chari officinarum, prov. Tucuman Argentina. 



30. Pleospora opaca Wegelm, Mitth. d. Thurgau. Natuff . Ges. X.II, 2308 

 1896. p. 9 extr. tab. III, fig. 12-13. — Peritheoiis feparsis, im- 

 mersis; ostiolo papillato conico, fulvo, opaco, prominulc donatis, 

 globosis V. ellipsoideis, 400 ,a. diara.; asois cylindraceis, int^rdum 

 subclavatis, crasse tunicatis, vertice poro distincto praeditis, sessi- 

 libus, 150-230 v 30-34, paraphysibus numerosis fiUformibuLS septatis 

 circiter 4 fx, crassis obvallatis; sporidiis mono- v. distichis, ovoideis 



V. ellipsoideis, atitice in apiculum contraxjtis, postice rotundatis, 

 medio modice constrictis, segmento supero longiore et crassiore, 

 nigris^ omnino impellucidis, transverse 7-septatia, in longitudine 

 1 V. 2 septis percursis, quoque loculo 1-guttatis, 39-47 ** 15-19*/^. 

 Hab. in culmis siccis Phalaridis, Thurgau Helvetiae. 



31. PlBQspora Oligostachya Eli. et Ev. Americ. Natur. 1897, p. 342. ^ 

 — Peritheciis sparsis, hemisphasrico-prominulis, minutis, 200 p,, 

 nigris, ostiolo minuto papilliformi ; ascis oblongo-cylindraoeis, breve 

 stipifcatis, 65-75 ^ 12-14 ; paraphysibus numerosissimis ; sporidiis 

 distichis, oblongo-eliipticis , subinaequilat-eralibus, 3-septatis, vix 

 constrictis, una cellula sjepe longitudinaliter septata, 14-17 v 6-7. 



Hab. in foJiis Boutelouae oligostachyae in Kansas Araer. 

 bor. (Bartholomew). 



32. Pleospora findens Ell. et Ev. Americ. Natur. 1897, p. 342. — 2310 

 Peritheciis immersis, globosis> 150 y. diam., erumpentibus, ostiolo 

 conico-tuberouliformi ; ascis cylindraceis, breve stipitatis, J3(V150 



'^ 12 ; paraphysibus nullis ; sporidiis monostichis, oblongis, 5-se- 

 ptatis, plerumquQ 1 v. 2 cellulis longitudinaliter septatis, strami- 

 neis, 20-34 * 3-5 (?). 



