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A fossil Vallisneria plant (Hydrocharitaceae) from the Early Miocene freshwater deposits of the Most Basin (North Bohemia)
Authors:Josef Bogner  Zlatko Kvaček
Institution:1. Botanical Garden Munich, Menzinger Strasse 63, D-80638, München, Germany;2. Faculty of Science, Institute of Geology and Palaeontology, Charles University, Albertov 6, CZ-12843 Praha 2, Czech Republic
Abstract:A new fossil species of Vallisneria (V. janecekii Bogner & Kva?ek, sp. n., Hydrocharitaceae) is reported from Early Miocene freshwater lake deposits of the North Bohemian brown coal basin (Czech Republic). It is based on a single fragmentary sterile plant bearing two clusters of ribbon-shaped widely serrulate leaves on a short rhizome. It is a potential producer of seeds described from equivalent and slightly older deposits in Saxony (Germany) as Vallisneria ovalis Mai.
Keywords:Hydrocharitaceae  Miocene  Vegetative fossil  Central Europe
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