DISCOMYCETES 245 



Studied extensively by Lohman (1933). The genus Glonium 

 [Lohman (1937)1, including forms with two-celled, fusiform, 

 and hyaline ascospores, is common on wood of various kinds 

 throughout Europe and North America. Hvsterographium, with 

 brown muriform ascospores, is also of rather common occur- 

 rence. 



Among imperfect stages found associated with members of the 

 group are Septonema, Sporodesmium, and Papulospora. Unfor- 

 tunately the details of sexual reproduction are almost completely 

 unknown. Spermogonia should be sought, especially amono- 

 species having pycnidial stages. 



LITERATURE CITED 



BiSBY, G. R., "The literature on the classification of the Hysteriales," 



Trans. Brit. Mycol. Soc, 8: 176-189, 1913. 

 Darker, G. D., "The Hypodermataceae of conifers," Contrib. Arnold Ar- 



boretinn, 1: 1-131, 1932. 

 Haack, G., "Die Schuttepilz der Kiefer," 2. Forst-u. JagdiD., 43:329-357, 



402-423, 481-505, 1911. 

 HoHNEL, F, VON, "Mycologische Fragmente 272. tjber die Hvsteriaceen," 



^777z. Mycol., 16: 145-154, 1918. 

 Jones, S. G., "The structure of Lophoderjnium pinastri (Schrad.) Lev.," 



Ann. Botany, 49:699-12^, 1935. 

 LiNDAu, G., ''Hysterimeae.'" In Engler and Prantl, Die natiirlicben Pflanz- 



enjamiilien, 1: (1) 265-278, 1896^ 

 Lohman, M. L., "Hysteriaceae: Life histories of certain species," Papers 



Mich. Acad., 11 (1932): 229-288, 1933. 

 "Studies in the genus Glonium as represented in the southeast," Bidl. 



Torrey Botan. Club, 64:57-72, 1937. 

 Tehon, L. R., "A monographic rearrangement of Lophodermium," ///. Biol. 



Monogr., 13:1-151, 1935. 

 Weir, J. R., ''Hypodenna deformans, an undescribed needle fungus of the 

 ■ western yellow pine," /. Agr. Research, 6: 277-288, 1916. 



DiSCOMYCETES 



The Discomycetes comprise those ascomycetous fungi which 

 have disk-like or cup-like fructifications. The fructifications are 

 given various appellations, such as disks, ascomata, discocarps, and 

 apothecia. 



More than 5000 species are included in this major groupinij. 

 They may be separated into two sections, the Operculates and 



