Department of Botany and Plant Pathology, Oklahoma Agriculture and Mech. College
USDA United States National Fungus Collections
Ray W. W.; Preston D. A. s.n. 15 October 1943
Phyllosticta brunnea Dearn. & Barthol.
United States, Oklahoma, Stillwater College Nursery
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USDA United States National Fungus Collections
Ray W. W.; Preston D. A. s.n. 15 October 1943
Sphaceloma populi (Sacc.) Jenkins
United States, Oklahoma, Stillwater College Nursery
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USDA United States National Fungus Collections
Ray W. W.; Preston D. A. s.n. 15 October 1943
Sphaceloma populi (Sacc.) Jenkins
United States, Oklahoma, Stillwater College Nursery
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USDA United States National Fungus Collections
Ray W. W.; Preston D. A. s.n. 15 October 1943
Sphaceloma populi (Sacc.) Jenkins
United States, Oklahoma, Stillwater College Nursery
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