676 Pyrenomycettr, Sphseriacoa-, Phseodidymffi, Didymosphseria. 



nereis exaridis; peritheciis innato-erumpentibus, punctiformibus. 

 gregarie sparsis, lenticularibus, atris, contextu membranaceo, fu- 

 sco-atro, celluloso, medio poro lato pertusis, ca. 80-100 ;j.. diam.; 

 ascis subcylindraceis, vertice rotundato-obtusis, basi subfasciculatis, 

 aparaphysatis, 8-sporis, 70-80 * 9-10; sporidiis oblique monostichis 

 vel subdistichis, subclavato-fusoideis, rectis vel curvulis, utrinque 

 subacutiusculis, medio 1-septatis, paulo constrictis, fuscis 10-15« 



3 y 2 -4. 



Hab. in thallo Marchanthr polymorphae pr. Berlin Ger- 

 mani;e (K. Osterwald). 

 2. Phaeosphaerella araneosa (Eehm) Sacc. et D. Sacc. Ita vocanda 

 Epicymatia araneosa (Rehm) Sacc. — Syll. I, p. 572 — seu Sphw- 

 rellothecium araneosum (Rehm) Zopf in N. Act. Leop. Car. LXX, 

 1897, p. 178, cum icone. — Sporidia matura omnino fuliginea, 

 12,5-14,3 « 5,4; paraphyses nullna. 



TICHOTHECIUM Flotow — Syll. IX, p. 723, XIV, pag. 551, XVI, 

 p. 498. — Aptius forte est hoc genus limitandum ad species tantum 

 ascis polysporis sporidiisque pha-odidymis prseditis. Cfr. Syll. IX, 

 p. 726, sect. II. 



1. Tichothecium microcarpum Arn. Tirol. XIV, p. 477. — Perithe- 2300 

 ciis nigris, minutissimis ; ascis 20-sporis aparaphysatis ; sporidiis 

 bicellularibus, brunneis, 6-8 « 3-3,5, ovoideis. 



Hab. in apotheciis Call opismatis sp. etBiatorinae di- 

 lutae in Tirolia. 



DIDYMOSPH/ERIA Fuck. — Syll. I p. 701, IX p 728, XI p. 312, 

 XIV p. 551, XVI p. 498. 



1. Didymosphaeria minima Feltg. Vorstud. Pilz. Luxemb. Nachtr. III, 2301 

 1903, p. 246. — Peritheciis grej^ariis vel sparsis, omnino tectis, 

 globosis, basi applanatis, nigris 80-150 a. diam., subinde epider- 

 mide denigrata tectis, ostiolo minuto conico, emergente; ascis tereti- 

 davatis, deorsum tenuatis, filiformi - paraphysatis 55-85 » 3,5-5, 

 octosporis; sporidiis mono-distichis, obovato-ellipsoideis vel sub- 

 fusoideis^ obtusulis, rectis vel curvulis 1-septatis, non constrictis, 

 olivaceo-brunneis, 8-9 « 3-4, cellula superiori vulgo paullo crassiore. 



Ilab. in raulibus corticatis Echii vulgaris, Luxemburg. — 

 Proxime affinis Didym. subconoiderc. 



2. Didymosphaeria Stellariae v. Hohnel Fragm. znr Mvcol. 1903, p. 6. 2302 

 — Foliicola; perithociis teneris, sparsis, epidermide non nigre- 





