The origins of Clifford's herbarium

The development of the Hartekamp, George Clifford's estate, into one of the finest private Dutch botanical gardens was strongly influenced by the Hortus Botanicus of Leiden and its directors Boerhaave and Van Royen. Boerhaave's Index alter plantarum was used as the taxonomic framework for Clifford's herbarium until Linnaeus rearranged it.