Ulmus × hollandica 'Folia Rhomboidea' is one of a number of cultivars possibly arising from the crossing of the Wych Elm Ulmus glabra with a variety of Field Elm Ulmus minor. First mentioned by Morren in 1851 as U. campestris latifolia, foliis rhomboides. Description Reputed to resemble 'Pitteurs' but for the rhomboid shape of the leaf. Cultivation Once grown on the Pitteurs estate, Sint-Truiden, Belgium. No specimens are known to survive. References Dutch elm cultivar Ulmus articles missing images Ulmus Missing elm cultivars