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Not merge
edit@Plantdrew: These are two cultivars, one U. glabra and the other probably U. minor or possibly U. x hollandica.
These pages were split following a query from @Ptelea:, see threads below:
If we were to merge the pages I fear they would end up being confused, so I would suggest not merging them.
Tom_elmtalk 09:39, 1 September 2017 (UTC)
- Agreed. Not merge. Spath consistently used U montana for wych and hybrid cultivars, U campestris for U minor cultivars. His U campestris Rugosa, a wrinkled-leaved corky-branched Field Elm, must therefore be different from Audibert's, Loudon's, and Rumpler's tree(s), which have old species names for wych or wych hybrids. Hanham (1857), who sounds a reliable witness, described the two specimens of U montana Rugosa he knew in Bath as Rugose Scotch Elm. Wych elm never has corky branchlets. So we have at least two cultivars called Rugosa.
- @Tom elm: OK, fair enough. I was confused by the history of the pages. At some point, presumably one of these 'Rugosa's will need to be renamed; except in very limited circumstances, the ICNCP doesn't permit reuse of cultivar names in the same designation class (i.e. genus). But it looks like there's a long way to go before elm cultivar nomenclature is sorted out. Morton Arboretum is the Cultivar Registration Authority and they've got numerous duplicate cultivar names shown here. Plantdrew (talk) 21:05, 1 September 2017 (UTC)