Ulmus 'Exoniensis'
…Angers, France, marketed a variegated Exeter elm in the 1880s, U. montana 'Fastigiata Variegata'. 'Clusius', 'Columella', 'Dodoens', 'Lobel', 'Plantyn', 'Nanguen' = Lutèce, 'Wanoux' = Vada. The cultivar 'Columella' features the same rough, rounded, contorted leaves, the result of a recessive gene inherited from the Exeter…