Abstract Triassic limestone areas of Thuringia are well-known for their richness hybrids between S. aria and torminalis (subgenus Tormaria ). Those have been originally described as endemic taxa (i.e. Sorbus heilingensis, isenacensis However, the former endemics recently synonymized with S . × decipiens ( Karpatiosorbus hybrida (Bechst.) Sennikov & Kurtto) due to diploidy putative sexuality...

Under the present wording of Art. H.11.1 International Code Nomenclature for algae, fungi, and plants (Turland & al. in Regnum Veg. 159. 2018), “The name a nothospecies which postulated or known parent species belong to different genera is combination nothogeneric with nothospecific epithet.” No other option naming such bigeneric multigeneric hybrids mentioned Code, therefore we think that rest...