Four rows of leaves of varying form, including some of holly (Ilex species) and willow (Salix species). Colour nature print by A. Auer, c. 1853.

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Four rows of leaves of varying form, including some of holly (Ilex species) and willow (Salix species). Colour nature print by A. Auer, c. 1853. Wellcome Collection. Public Domain Mark. Source: Wellcome Collection.