Ulmus 'Hertfordensis Latifolia'

The elm cultivar Ulmus 'Hertfordensis Latifolia' was listed by Loudon in Arboretum et Fruticetum Britannicum (1838) as "the broad-leaved Hertfordshire Elm", and later mentioned, as Ulmus campestris hertfordensis latifolia, by Boulger in the Gardener's Chronicle (II. 12: 1879), but without description. It was considered "probably U. carpinifolia" (:U. minor) by Green, though broad leaves point to a possible Ulmus × hollandica hybrid identity. Hybrids of this type were once common in eastern Hertfordshire.

Description
Loudon's "broad-leaved" epithet distinguished the tree from his narrow-leaved Hertfordshire elm, U. 'Hertfordensis Angustifolia'.

Pests and diseases
Though susceptible to Dutch Elm Disease, field elms (see Green's conjecture above) and their hybrids produce suckers and usually survive in this form in their area of origin.

Cultivation
The Woodland Trust records a small number of mature U. minor and Ulmus × hollandica surviving in Hertfordshire.

Synonymy

 * Ulmus campestris hertfordensis latifolia: Boulger, in Gardener's Chronicle II. 12: 298 1879.