, Volume 14, Issue 4, pp 518-527
Date: 07 Jun 2005

The first subfossil records of Urtica kioviensis Rogow. and their consequences for palaeoecological interpretations

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Among plant remains from Mesolithic layers dating from 9249 to 7779 B.C. at the excavation site of Friesack IV in north-eastern Germany, nutlets of Urtica kioviensis were identified. Morphological studies have shown that they clearly differed from all other European Urtica species investigated. In contrast, pollen morphological investigations revealed only slight differences between the central European Urtica species, which could hardly have been noticed during routine or normal pollen analyses. The records of U. kioviensis nutlets are the first subfossil finds reported and prove the indigenous status of this taxon in north-eastern Germany. The records are discussed in the context of the overall species spectrum of the Mesolithic layers and consequences for the interpretation of pollen analytical studies concerning human impact are pointed out.

This paper is dedicated to the memory of the botanist and palaeoecologist Klaus Kloss (1934–2004).