62 Proceedings of the Ohio State Academy of Science 



KEY TO GENERA. 



a — Apothecia leathery, dark Urnula 



a — Apothecia gelatinous Sarcosoma 



Genus I. Urnula Fr. Sum. Veg. Scand. 364. 1849. 

 Type species, Urnula craterium (Schw.) Fr. 



Apothecia leathery, tough, stipitate, urnshaped, exterior 

 dark, furfuraceous or pubescent, interior dark, at first closed 

 later opening by a round or irregular aperture. Stipe stout and 

 about equal in length with the cup. Asci cylindrical. Spores 8, 

 oblong, hyaline. 



Distinct from Sarcoscypha in color and villous stipe. 



Urnula craterium (Schw.) Fr. Nov. Symb. 106. 185 1. 



Peziza craterium Schw. Syn. Fung. Carol, no. 1175. 

 pi. 1. f. 7-1 1. 1822. 



Apothecia solitary or caespitose, 3-5 cm. broad and 5-8 cm. 

 high, interior brown to dark purplish brown, exterior dark brown, 

 somewhat scaly and covered with dark brown appressed hairs, 

 edge involute and jagged caused by the irregular rupture of the 

 cup. Hymenium brown, outer part of the exciple very dark 

 brown. Paraphyses hyaline, septate, branched, numerous. Asci 

 very long, curved near the ends, cylindrical. Spores uniseriate. 

 guttulate, granular, 26-29 mic. long and 10 mic. wide. 



Growing on the ground or on buried sticks. Spring, 

 Coll. Bruce and H. W. Fink, Mch. 16, 1908. Freda M. 

 Bachman, Apr. 11, 1908. 



Genus II. Sarcosoma Casp. in Rabenh. Krypt. Fl. i 3 :497. 1891. 

 Type species, Sarcosona globosum (Schmid.) Rehm. 



Apothecia gelatinous, large, spherical, becoming more or les-j 

 plane, exterior brown, interior paler. Paraphyses linear, much 

 branched, scarcely thickened at the apices. Asci long, operculate. 

 Spores elliptic 8, with or without oil globules, nearly hyaline. 



Growing on decaying leaves, sticks, etc. 



