Asteromella kalmicola (Schwein.) Petr. 1924

Phyllosticta kalmicola (Schw.) Ellis & Ev. Proc
Acad. Phila. 1893: 454. 1893.
Sphaeria kalmicola Schw. Trans. Am. Phil. Soc. II. 4: 226, in part. 1832. Depazea kalmicola Rav. Fungi Car. 3: 71. 1855.
Spots circular or subcircular in form, white or whitish, surrounded by a slightly raised, purplish-red border, the color gradually blending off into the healthy tissues of the leaf, reaching a diameter of 2-3 mm., or more rarely several coalescing giving rise to one compound spot of irregular form rand reaching a diameter of 1 cm., visible on the under side of the leaf as a reddish-brown spot; pycnidia restricted to the upper side of the leaf, numerous, scattered over the infected area, minute, black, reaching a diameter of 100-120 fx; spores very minute, rather scant, 1 X 2-3 /j..
On Ericaceae:
Kalmia latifolia L/., Delaware, District of Columbia, Maryland, Mississippi, New Jersey, New York, Pennsylvania. Type locality: Bethlehem, Pennsylvania, on Kalmia sp. Distribution: New York to Maryland, and Mississippi.