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A Leaf Spot of Grasses Caused By A New Species of Phleospora

John R. Hardison, Roderick Sprague

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Abstract

During an investigation of the grass diseases occurring in Michigan in 1941, a leaf spot was collected on Agropyron repens (L.) Beauv. and Elymus canadensis L. caused by a fungus which was tentatively reported as Phleospora sp. (2). The infection on Elymus canadensis was very light and occurred only on the leaf blades. On Agropyron repens the infection was heavy on leaf blades (FIG. 1) and extended to the leaf sheaths in some instances. The causal fungus is described as follows:

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What this paper is about

During an investigation of the grass diseases occurring in Michigan in 1941, a leaf spot was collected on Agropyron repens (L.) Beauv. and Elymus canadensis L. caused by a fungus which was tentatively reported as Phleospora sp. (2). The infection on Elymus canadensis was very light and occurred only on the leaf blades. On Agropyron repens the infection was heavy on leaf blades (FIG. 1) and extended to the leaf sheaths in some instances. The causal fungus is described as follows:

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Available abstract

During an investigation of the grass diseases occurring in Michigan in 1941, a leaf spot was collected on Agropyron repens (L.) Beauv. and Elymus canadensis L. caused by a fungus which was tentatively reported as Phleospora sp. (2). The infection on Elymus canadensis was very light and occurred only on the leaf blades. On Agropyron repens the infection was heavy on leaf blades (FIG. 1) and extended to the leaf sheaths in some instances. The causal fungus is described as follows:

Key concepts: Biology, Leaf spot, Botany

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