pressed oak leaf with acorn morphology |
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| navigate by keyword : quercus robur oak english leaf lobed lamina dentata acorn cupule nut fruit seed capsule section stem twig tree brown pressed dried foliage botanical herbarium antique parchment vintage scientific biology structure illustration drawing anatomy morphology deciduous forest natural preserved organic taxonomy crown silhouette trunk autumn fall historic sample specimen diagram shell |
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| Study sheet showing oak leaf venation and fruit, including a transverse acorn section. |
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