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Phyllosticta virginiana

Comprehensive Description

provided by North American Flora
Phyllosticta virginiana (Ellis & Halsted) Seaver
Phoma virginiana Ellis & Halsted, Jour. Myc. 4:8. 1888.
Spots large and irregular, often covering a large part of the leaf, becoming dead and brown or occasionally cinereous, visible on both sides of the leaf but more distinct on the upper surface, reaching a diameter of 3-4 cm.; pycnidia numerous, thickly gregarious, often giving the infected spot a blackish appearance, occurring on either side of the leaf, reaching a diameter of 80-100 n spores abundant, minute, rod-like, about 1 X 5 ju.
On Malaceae:
Amelanchier canadensis (L.) Medic, New York.
Amelanchier sp., Wisconsin. On Amygdalaceae :
Prunus americana Marsh., Kansas.
Padus melanocarpa (A. Nelson) Shafer (Prunus demissa Walp., Cerasus demissa melanocarpa A. Nelson), Kansas, Montana.
Padus nana (Du Roi) Roemer (Prunus nana Du Roi), Montana. 71
Padus virginiana (L.) Mill. {Primus virginiana I,., Prunus serotina Ehrh.), Iowa, Kansas. Type locality: Ames, Iowa, on Prunus virginiana. Distribution: New York to Kansas and Montana.
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bibliographic citation
Fred Jay Seaver. 1922. PHYLLOSTICTALES; PHYLLOSTICTACEAE (pars). North American flora. vol 6(1). New York Botanical Garden, New York, NY
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