Proceedings of the Ohio State Academy of Science 63 



Sarcosoma rufa (Schw.) Rehm in Raben. Krypt. Fl. i'"-4 r J7- 

 1 891. 



Bulgaria rufa Schw. Syn. X. Am. Fung. 178. 1834. 



Apothecia solitary or caespitose, 3-6 cm. broad, stipitate, 

 exterior dark, almost black, interior very light brown, concave, 

 becoming" plane. Stipe 1-2 cm. long. Hymenium pale or 

 slightly tinged with brown, hypothecium brownish, central por- 

 tion hyaline outer cells dark brown. Paraphyses slender, filiform. 

 Asci cylindrical. Spores hyaline, ellipsoid, 15-20 mic. long and 

 8-10 mic. wide. 



Growing on partly buried sticks in the woods. 



Coll. Bruce Fink, W. G. Stover, Freda M. Bachman, July 

 19, 1907. Bruce Fink, W. G. Stover, June 22, 1908. Freda M. 

 Bachman, Aug. 6, 1908. 



Order III. Helvellales. 



Mycelium within the substratum. Receptacle sessile or 

 stipitate, upper portion pileate, mitrate or clavate. Etymenium 

 on the upper surface and exposed from the first. Fleshy or 

 waxy, rarely gelatinous. 



Family I. Helvellaceae. 



Receptacle fleshy, stipitate, pileate or mitrate. Asci open- 

 ing by opercula. 



KEY TO GENERA. 



a — Pileus more or less deeply pitted Morchella 



a — Pileus more or less lobed Helvella 



Genus I. Morchella (Dill.) Pers. Sym. Meth. Fung. 618. 

 1 801. 



Type species, Morchella esculenta (L.) Pers. 



Mycelium within the substratum. Ascophore composed of 

 pileus and stipe, 7-24 cm. high. Pileus wholly adnate to the 

 stipe or partially free, clavate, globose or conical, irregularly and 

 more or less deeply pitted by the prominent anastomosing ribs, 

 gray or brownish. Stipe hollow, bulbous near the base or cy- 



