734 MINNESOTA BOTANICAL STUDIES. 



Two species are desbribed from North America. In some of 

 the European forms the conidiophores pass into globose or 

 clavate "pseudospores." These forms have been placed by 

 many among the Tremellineae, where, perhaps, some of the 

 species put in Epidochium belong. The section Hormodochium 

 Sacc. has catenulate conidia and should be separated. None 

 of the North American species are included in it. 



7. EPICOCCUMLk. Obs. Myc. 2:32. 1813. 

 Sporodochia globose or convex, cellular; conidiophore, very 



short, dark colored; conidia subglobose, minutely verrucose, 

 usually areolate. 



The species occur on dead, decaying herbaceous stems and 

 leaves, for the most part, where their presence is indicated by 

 a red or purple discoloration. 



Nine species are reported from North America. 



8. EPICLINIUM Fr. Summ. Veg. Scand. 475. 1849. 

 Sporodochia applanate, pezizoid or truncate, black; coni- 

 diophores reduced or obsolete; conidia oblong, one-septate, 

 pedicellate (i. e., on reduced conidiophores), upon a corneous 

 stroma. 



The type is a Schweinitzian species described as a Didymo- 

 sporium. 



9. BACTRIDIUM Kunze. My k. Heft. 1:5. 1817. 

 Sporodochia rather thin, hemispherical, convex; conidio- 

 phores short, terete, simple or subsimple; conidia large, elong- 

 ate obJong-cylindrical, many septate. 



Three species are reported from North America. 



10. EXOSPORIUM Lk. Obs. Myc. 1:8. 1809. 



Sporodochia convex, compact; conidiophores short, simple, 

 densely fasciculate, black; conidia acrogenous, oblong or ter- 

 ete, many septate. 



Three species are reported from North America. 



Scoriomyces Ell. and Sacc. Misc. Myc. 2:18. 1884. is of 

 doubtful position. The sporodochium is composed of the 

 apices of rhizomorpha-like fibres, and is waxy, and amor- 

 phous. The rhizomorpha-like fibers form within a thick 

 net-work in each subhexagonal areola of which a spore is 

 produced. No sporophores or hyphae have been observed. 

 Such a form can hardly be placed in this group with pro- 

 priety. Two species are described. 



