Ustilago sphaerogena Burrill 1888

Ustilago sphaerogena Burrill; (Ellis & Ev. N. Am. Fungi 1S92/
hyponym. 1887) Sacc. Syll. Fung. 7' : 468. 1888.
Cintractia sphaerogena Hume, Proc. Iowa Acad. Sci. 9 : 233. 1902.
Sori in ovaries, ovate, chiefly 3-6, rarely 10, mm. in length, covered with a tough hispid membrane which ruptures irregularly from apex disclosing at first an agglutinated but finally a dusty olive-brown spore-mass; spores ovoid to subspherical , prominently and sharply echinulate, chiefly 9-12 /^ in length.
On Poaceae :
Echinochloa colona {Panicum colonum), Texas.
Echinochloa Crus-galU {Panicum^ Crus-galli), Connecticut, Illinois, Iowa, Missouri, Nebraska, North Carohna ; Mexico.
Echinochloa Walteri {Panicum Walteri), Delaware. Type locality: Osborne, Illinois, on Panicum Crus-galli {Echinochloa Cnis-galli). Distribution : Connecticut to Nebraska, North Carolina, and Mexico.