Licence: Public Domain Mark
Credit: Sir Joseph Dalton Hooker. Photograph by Ernest Edwards. Wellcome Collection. Source: Wellcome Collection.
![no text alternative](https://iiif.wellcomecollection.org/image/V0026579ER/full/800%2C/0/default.jpg)
Licence: Public Domain Mark
Credit: Sir Joseph Dalton Hooker. Photograph by Ernest Edwards. Wellcome Collection. Source: Wellcome Collection.