dcsimg

Comprehensive Description

provided by North American Flora
Phyllosticta grisea Peck, Bull. N. Y
State Mus. 67: 29. 1903.
Spots subcircular, gray, with a purplish-brown border, the main part of the spot finally
becoming brown, and brown on the under side of the leaf, reaching a diameter of 1—1.5 mm.;
pycnidia occurring on the upper side of the leaf, erumpent, black; spores ellipsoid, hyaline,
4 X 6-7.5 ft.
On Malaccas :
Crataegus praecox Sargent, New York. Type locality: Crown Point, New York, on Crataegus praecox. Distribution: Known only from the type locality.
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cc-by-nc-sa-3.0
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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