In this paper we describe a new blackberry species belonging to the series Mucronati (Focke) H. E. Weber: Rubus lianos A. Beek, Berkhout, Haveman & De Ronde. It resembles the Silesian variety R. koehleri subsp. polyoplon var. rhapidorhachis Kinscher ex Sudre (1911: 189), which is lectotypified here. Added is a short discussion concerning the distribution area of the new species.

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Gorteria Dutch Botanical Archives

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Naturalis Biodiversity Center

A. van de Beek, R. Haveman, R. Berkhout, & I. de Ronde. (2021). Rubus lianos (Rosaceae) – a new blackberry species from the Netherlands, Germany, and Belgium. Gorteria Dutch Botanical Archives, 43(1), 89–102.