Ulmus 'Nanguen' = Lutece

Ulmus 'Nanguen' = Lutece

One of the last Dutch hybrid cultivar elms to be released, Ulmus 'Nanguen' (selling name Lutèce) is a complex fourth generation tree with an ancestry comprising four Field Elms U. minor, three Wych Elms U. glabra including the curious Exeter Elm, var. 'Exoniensis', and a frost-resistant selection of the Himalayan Elm U. wallichiana.

Originally identified as clone 812, Lutèce was not promoted by the Dutch owing to unfounded fears that it may prove susceptible to Coral Spot fungus Nectria cinnabarina. Instead, '812' was acquired by the French Institut National de la Recherche Agronomique (INRA), which subjected the tree to 20 years of field trials in the Bois de Vincennes, Paris, before patenting and release in 2002 as 'Nanguen' (Lutèce).