. The Canadian field-naturalist. 1996 Waldron, Gartshore, and Colthurst: Pumpkin Ash in Ontario 617. SOUTHWESTERN ONTARIO Figure 1. Ontario distribution of Pumpkin Ash, based on collections #, and observations Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ottawa Field-Naturalists' Club. Ottawa, Ottawa Field-Naturalists' Club

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