Phlyctema iridis (Ellis & G. Martin) Petr. 1925

Phyllosticta iridis Ellis & Martin; Ellis & Ev
Proc. Acad. Phila. 1893: 456. 1894.
Spots at first small, elongate or irregular in outline and with no distinct border, scattered over the surface of the leaf, purplish, the whole leaf-tip and sides finally becoming reddishbrown and dead, the original spot becoming still darker and often blackish; pycnidia in groups of 4-6 each on the original spots, subimmersed and not very conspicuous, visible on both sides of the leaf; spores numerous, narrow-ellipsoid, or subcylindric, 2-2.5 X 10-12 i*.
On Iridaceae:
Iris versicolor L., Florida, Michigan, New York, Ohio. Type locality: Ann Arbor, Michigan, on Iris versicolor. Distribution: New York to Michigan and Florida.