This herbarium would become the basis for the Flora Capensis (1860–1865) by his friend, Hamburg botanist Otto Wilhelm Sonder (1812–1881) in collaboration with the British botanist William Henry Harvey (1811–1866).
This herbarium would serve as the foundation for the Flora Capensis (1860–1865) by his friend, Hamburg botanist Otto Wilhelm Sonder (1812–1881), in collaboration with the British botanist William Henry Harvey (1811–1866).