dcsimg

Comprehensive Description

provided by North American Flora
Phyllosticta brassicicola McAlpine, Fung. Dis. Qabb. 37. 1901
Phyllosticta Brassicae Cooke, Jour. Roy. Hort. Soc. 27: 801. 1933. Not Phyllosticta Brassica Westend. 1867.
Spots definite in form, circular or subcircular, reaching a diameter of 1-10 mm. (averaging 4-5 mm.), brown or grayish in the center, surrounded by an olive-green or bluish-green border, the whole leaf often turning yellow, the border of the spot often showing a tendency to develop concentric rings; pyenidia occurring on either side of the leaf, usually covered by tfre thin epidermis which becomes raised; pyenidia cylindric or bacteroid, straight or slightly curved, 1.5-2.5 X 2.5-4.5 /*•
Said to be the pyenidial stage of My co sphaerella brassicicola. On Brassicaceae :
Brassica oleracea L. (cult.), California. Type locality: Australia, on Brassica oleracea (cauliflower shipped from California). Distribution; California; also in Europe and: Australia.
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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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