Fusicoccum phomiformis (Sacc.) Vanev & Aa 2002

Phyllosticta phomiformis Sacc. Michelia 2: 573. 1882
? Phyllosticta Quercus-rubrae W. Gerard, Bull. Torrey Club 6: 78 1876. (Host erroneously determined as Quercus rubra.)
Spots circular or subcircular in form, or slightly irregular, pale-yellowish in the center, with a dark reddish-brown area around the outside, reaching a diameter of 3-4 mm., visible on both sides of the leaf but uniformly pale-yellow on the under side; pycnidia rather thickly scattered over the lighter portion of the spot, reaching a diameter of 150 m; spores large, ellipsoid or subfusoid, straight or slightly curved, reaching a length of 18-22 u and a diameter of 6-8 u.
On Fagaceae: . . * .
Quercus alba L>, Massachusetts, New Jersey, Pennsylvania, Wisconsin; Ontario.
Quercus macrocarpa Michx., Connecticut.
Quercus Prinus L., Kansas.
Quercus stellata Wang. (Quercus obtusiloba Michx.), Florida, Missouri, New Jersey.
Quercus sp., Massachusetts, New York, Pennsylvania. Type locality: Pennsylvania, on Quercus alba. Distribution: Massachusetts to Wisconsin, Kansas, and Florida.