Elm Twig
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“B, a twig of European elm; A, a longitudinal section of the buds of B. ax, the axis of the bud which will elongate into a shoot; sc, leaf-scars.” -Bergen, 1896
Galleries
Trees: D-HSource
Joseph Y. Bergen, A. M. Elements of Botany (Boston, MA: Ginn & Company, 1896)
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