Ustanciosporium montagnei (Tul. & C. Tul.) M. Piepenbr., Begerow & Oberw. 2000

Cintractia montagnei (Tul.) Magn. Abh. Bot. Ver. Prov
Brand. 37: 79. 1896.
Ustilago Montagnei Tul, Ann. Sci. Nat. III. 7 : 88. 1847.
Sori in ovaries, usually rather completely hidden by the enveloping glumes, oblong to subspherical, small, powdery or less commonly firm; spores brown or black-brown, somewhat compressed laterally and so showing oblong to polygonal or subcircular according to view, usually with remains of enveloping membrane showing as prominent hyaline lateral wings, minutely pitted, 12-19 /i, chiefly 13-16 /i, in length.
On Cyperaceae :
Rynchospora alba, Connecticut, Maine, New York, Vermont; Newfoundland.
Rynchospora ciliala, Florida.
Rynchospora eximia, Mexico.
Rynchospora glomeraia, Connecticut, Massachusetts, Mississippi, New York.
Rynchospora tenuis, Mexico.
Rynchospora sp.. North Carolina, South Carolina. Type locality : Algeria, Africa, on Schoenus {Rynchospora) sp. Distribution : Newfoundland and New England to Florida and Mexico ; also in Soutli America, Europe and Africa.