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Flowering Times in Viburnum
Vol 40, Iss 1, Page 2
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Itea: Summer Flowers and Autumn Color
Vol 40, Iss 1, Page 23
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A Taste for Horticulture
Vol 40, Iss 1, Page 31
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Mr. Dawson, Plantsman
Vol 40, Iss 2, Page 51
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The Bladdernuts
Vol 40, Iss 2, Page 76
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Outstanding Plants of the Arnold Arboretum: Amelanchier arborea
Vol 40, Iss 2, Page 94
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Books Received
Vol 40, Iss 2, Page 98
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E. H. Wilson as a Botanist (Part I)
Vol 40, Iss 3, Page 102
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Mapping the Collecting Localities of E. H. Wilson in China
Vol 40, Iss 3, Page 139
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Outstanding Plants of the Arnold Arboretum: Prunus cyclamina
Vol 40, Iss 3, Page 146
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E. H. Wilson as a Botanist (Part II)
Vol 40, Iss 4, Page 154
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Outstanding Plants of the Arnold Arboretum: Quercus x Sargentii
Vol 40, Iss 4, Page 194
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Books Received
Vol 40, Iss 4, Page 200
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Sargent's Weeping Hemlock Reconsidered
Vol 40, Iss 5, Page 202
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Outstanding Plants of the Arnold Arboretum: Pseudolarix amabilis
Vol 40, Iss 5, Page 224
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The Director's Report: the Arnold Arboretum during the fiscal year ended June 30, 1980
Vol 40, Iss 6, Page 238
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Notes from the Arnold Arboretum: The Restoration of Oak Path
Vol 40, Iss 6, Page 294
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Index to Volume XL
Vol 40, Page 303