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Members Cooperative Research Program, Mike Spravka and volunteers preparing plantsNachel, Jim
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Aesculus turbinata Blume (Japanese horse-chestnut), close-up of inflorescenceNachel, Jim
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Quercus shumardii (Shumard's oak) and Quercus acerifolia (maple-leaved oak), potted seedlingsNachel, Jim
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Members' Cooperative Research Program, Mike Spravka holding plant in Research Building basement1990s
Nachel, Jim
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Arboretum employees with wheelbarrows planting young trees by Crabapple LakeMay 1990
Nachel, Jim