No taxon left behind? - a critical taxonomic checklist of Carpinus and Ostrya (Coryloideae, Betulaceae) Author Holstein, Norbert Rheinische Friedrich-Wilhelms-Universität Bonn, Bonn, Nordrhein-Westfalen, Germany. & Corresponding author: holstein @ uni-bonn. de Author Weigend, Maximilian Rheinische Friedrich-Wilhelms-Universität Bonn, Bonn, Nordrhein-Westfalen, Germany. & Email: mweigend @ uni-bonn. de text European Journal of Taxonomy 2017 2017-12-07 375 1 52 journal article 21949 10.5852/ejt.2017.375 c072dbcc-028b-4fa2-a564-8601e0435854 2118-9773 3838542 1n. Carpinus betulus ‘ Asplenifolia ’ C. betulus var. asplenifolia Bean, Trees and Shrubs, Hardy in the British Isles 1: 294 ( Bean 1914 ). – Original citation: No detailed data given. – Type : not localized. – Note: cultivar with incised leaves. The incision depth is described as “the primary teeth large enough to be termed lobes”.