Diagram from chapter 1 'Oxalis', in Darwin's 'The power of ..
Licence: Public Domain Mark
Credit: Diagram from chapter 1 'Oxalis', in Darwin's 'The power of .. Wellcome Collection. Source: Wellcome Collection.
Licence: Public Domain Mark
Credit: Diagram from chapter 1 'Oxalis', in Darwin's 'The power of .. Wellcome Collection. Source: Wellcome Collection.