Excerpt from Diseases of Forest and Shade Trees, Ornamental and Miscellaneous Plants in the United States in 1920 Blight, cause undetermined, reported from Texa
Excerpt from Diseases of Forest and Shade Trees, Ornamental and Miscellaneous Plants in the United States in 1927 New Jersey on P. Conica; P. Excelsa, P. Pungen
Excerpt from Diseases of Forest and Shade Trees, Ornamental and Miscellaneous Plants in the United States in 1926 Idaho Clarkia, Shoshone County, elevation feet
Excerpt from Diseases of Forest and Shade Trees, Ornamental and Miscellaneous Plants in the United States in 1924 The control campaign in New England and New Yo
Excerpt from Diseases of Forest and Shade Trees, Ornamental and Miscellaneous Plants in the United States in 1922 Owing to the lack of more available data it ha