The

hybrid Hybrid may refer to: Science * Hybrid (biology), an offspring resulting from cross-breeding ** Hybrid grape, grape varieties produced by cross-breeding two ''Vitis'' species ** Hybridity, the property of a hybrid plant which is a union of two dif ...

elm cultivar ''Ulmus × hollandica'' 'Ypreau' is one of a number of cultivars arising from the crossing of the Wych Elm ''U. glabra'' with a variety of

Field Elm ''Ulmus minor'' Mill., the field elm, is by far the most polymorphic of the European species, although its taxonomy remains a matter of contention. Its natural range is predominantly south European, extending to Asia Minor and Iran; its northern ...

''U. minor''. The tree was first identified by Poederlébr>
i
''Manuel De L'Arboriste Et Du Forestier Belgiques'' 266, 1772
as ''l'orme Ypreau''.

Description

Poederlé's 'Ypreau' was distinguished solely by its ''

Tilia ''Tilia'' is a genus of about 30 species of trees or bushes, native throughout most of the temperateness, temperate Northern Hemisphere. The tree is known as linden for the European species, and basswood for North American species. In Britain a ...

''-like leaves.

Cultivation

Poederlé's ''orme Ypreau'' may have been the same hybrid that was still called ''ypreau'' or ''ypereau'' in the Somme and Picardy areas in the late nineteenth century, which, according to

R. H. Richens Richard Hook Richens (1919–1984) was a botanist and an early researcher in Computational Linguistics. Botany R. H. Richens was the Director of the Commonwealth Bureau of Plant Breeding and Genetics (part of the Commonwealth Agricultural Bur ...

, was ''Ulmus × hollandica'' 'Major'.Richens, R. H. (1983). ''Elm'', pp. 54, 42, 33. Cambridge University Press. Richens concluded, on the basis of field studies, that Picardy was the provenance of the 'Dutch' elm planted in England. The latter also has large heart-shaped ''

''-like leaves.

Etymology

The word ''Ypreau'' or ''ypereau'' was first recorded in 1432 from the Pas-de-Calais area, and found its way into Cotgrave's French-English dictionary of 1611 as a name for a large-leafed elm, as distinct from the small-leaved types of ''Ulmus minor'' in northern France. It derives from a north German word for elm, ''ip'' or ''iper'' that became ''iep'' in Dutch and ''iperen'' in Frisian, and reached French from Flemish. The tree was once commonly planted in the region of Ypres, Belgium, but does not take its name from the town. The cultivar name 'Ypreau' has also been given to varieties of Poplar and Willow, resulting in some confusion.

Synonymy

*? ''Ulmus × hollandica'' 'Major'

References

{{DEFAULTSORT:Ulmus x hollandica 'Ypreau' Dutch elm cultivar Ulmus articles missing images Ulmus