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Author: Westwood, John Obadiah 1805-93
Title: Galls on the roots of orchids ... [Hymenoptera; Gallflies; Roots (Botany) -- Diseases & pests; Plant parasite
Year: 1885
Format: Graphic
Price: Free
Publisher: Oxford Univ
Author: Wilson, Gurney
Title: The Orchid World: A Monthly Illustrated Journal entirely devoted to Orchidology, v II, 1911 & 1912
Year: 1911-
Format: Graphic
Price: Free
Publisher: MichStUnv
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