Cintractia limitata G. P. Clinton 1904

Cintractia limitata Clinton, Proc. Bost. Soc. Nat
Hist. 31 : 399. 1904.
Sori in the spikelets, infecting only part, at first concealed by the enveloping glumes but with the semi -agglutinated spore-mass finally becoming powdery and showing in the vicinity of the infected spikelets as a purplish-black powder ; spores chiefly dark reddishbrown, ovate or ovoid to chiefly subspherical or spherical, occasionally somewhat polyhedral, often with pitted contents, smooth, 9.5-14 ^ in length.
On Cyperaceae :
Cyperus ligtilaris, Porto Rico. Type locality : Mayaguez and San Juan, Porto Rico, on Cyperus ligularis. Distribution : Known only from Porto Rico.