Proceedings of the Ohio State Academy of Science 55 



terior pale grayish, edge paler, exterior dark. Hymenium and 

 hypothecium and central part of cup almost colorless, outer cells 

 darker. Paraphyses filiform. Asci cylindrical. Spores oblong, 

 simple, hyaline, 5-8 mic. long and 3-4 mic. wide. 



Found on decaying wood. Saccardo gives the spore meas- 

 urements 10-12 mic. long and 3-5 mic. wide and the color of the 

 disc as ashy or yellowish. 



Coll. Bruce Fink, May 3, 1908. 



-\-Tapesia lividofusca (Fr. ) Rehm Disco. 576. 1892. 



Peziza lividofusca Fr. Sys. Mycol. 2: 147. 1822. 



Mycelium delicate, not abundant, most apparent when the 

 apothecia are dry. Apothecia lobed, sessile, spreading, 2-3 mm. 

 broad, at first cup shaped, interior pale brownish-ashy, exterior 

 black. Hymenium colorless, hypothecium hyaline, exciple black. 

 Paraphyses few, very slender. Asci cylindrico-clavate narrowed 

 toward the ends. Spores fusiform, 7-10 mic. long and 3-4 mic. 

 wide. 



Growing on old or rotting wood. Probably common. 



Coll. Freda M. Bachman, Nov. 3, 1907, Aug. 7, 1908. 



Genus III. Pezizella Fuck. Symb. Mycol. 299. 1869. 

 Type species, Pezizella sordida Fuck. 



Mycelium within the substratum. Apothecia waxy-mem- 

 branaceous, sessile, somewhat hemispherical, becoming plane, 

 glabrous, pallid, very small. Paraphyses filiform, hyaline. Asci 

 cylindrical or cylindrico-clavate. Spores 8, oblong, fusiform or 

 ellipsoid, simple, hyaline. 



Growing on decaying wood stems or leaves. 



KEY TO SPECIES. 



a — Apothecia 1 mm. or more broad. 



b — Apothecia white hyalina 



b — Apothecia yellowish xylita 



a — Apothecia less than 1 mm. broad. 



b — ■ Pale yellow and growing on stems dilutella 



b — Olivaceous and growing on leaves hyalinosulfurea 



