Comprehensive Description
(
Inglês
)
fornecido por North American Flora
Phyllosticta betulae Ellis& Ev.; Shear, N. Y. Fungi 367
1896.
Spots circular or subcircular or occasionally irregular, yellowish or whitish, often with a very narrow blackish border, reaching a diameter ( of 3-4 mm., or rarely as large as 1 cm., visible on either side of the leaf but more distinct on the upper side; pycnidia scattered or clustered near the center of the spot, conspicuous, black, reaching a diameter of 100-150/*; spores ellipsoid, 1.25-1.5 X 4-4.5 p., or some minute, 0.75-1 X 2.5 p.
On Betulaceae :
Betula lenta L., New York. Type locality: Alcove, New York, on Betula lenta. Distribution: Known only from the type locality.
- citação bibliográfica
- Fred Jay Seaver. 1922. PHYLLOSTICTALES; PHYLLOSTICTACEAE (pars). North American flora. vol 6(1). New York Botanical Garden, New York, NY
