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Dryad

Linnaeus' wild plants are under threat in Uppsala

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Apr 19, 2021 version files 79.21 KB

Abstract

Many of the plant species found by Carl Linnaeus and his students around Uppsala during the excursions Herbationes Upsalienses are extant in the areas they visited. The authors here present the first complete list of species registered during these excursions, with added information on extant species in the different areas. These Linnaean populations are of high cultural value, but they also have a high scientific value as potential type specimens. Three of Linnaeus’ excursion areas are therefore proposed to be included in the planned world heritage nomination "The Rise of Systematic Biology": Hågadalen, Årike Fyris and Fäbodmossen. The Linnaean populations are threatened by genetic pollution through the extensive sowing and planting of the same species with alien origin in connection with plant restauration after ground preparations and building. The degree of genetic pollution is not known, since sowing and planting of alien material is not registered. The authors give examples of alternative plant restauration methods using local plant material in order to preserve the Linnaean flora of Uppsala.