H.W. Ravenel and M.C. Cooke [1-800, plu extras]
USDA United States National Fungus Collections
s.n.
Zygodesmus laevisporus Cooke
United States
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USDA United States National Fungus Collections
s.n.
Zygodesmus laevisporus Cooke
United States
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University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
H. W. Ravenel s.n.
Zygodesmus laevisporus Cooke
United States, Florida, Gainesville;
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USDA United States National Fungus Collections
Ravenel H. W. s.n.
Oidium
United States, Florida, Gainesville
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