Department of Botany and Plant Pathology, Oklahoma Agriculture and Mech. College

USDA United States National Fungus Collections
Catalog #: BPI 521254
Ray W. W.; Preston D. A. s.n. 15 October 1943
Phyllosticta brunnea Dearn. & Barthol.
United States, Oklahoma, Stillwater College Nursery

USDA United States National Fungus Collections
Catalog #: BPI 682607
Ray W. W.; Preston D. A. s.n. 15 October 1943
Sphaceloma populi (Sacc.) Jenkins
United States, Oklahoma, Stillwater College Nursery

USDA United States National Fungus Collections
Catalog #: BPI 682608
Ray W. W.; Preston D. A. s.n. 15 October 1943
Sphaceloma populi (Sacc.) Jenkins
United States, Oklahoma, Stillwater College Nursery

USDA United States National Fungus Collections
Catalog #: BPI 682609
Ray W. W.; Preston D. A. s.n. 15 October 1943
Sphaceloma populi (Sacc.) Jenkins
United States, Oklahoma, Stillwater College Nursery