User:Tom elm/sandbox/Ulmus 'Triserrata'

The elm cultivar Ulmus 'Triserrata' was mentioned by Kirchner in Petzold and Kirchner (1864) as U. triserrata Hort. . It was distributed by the Späth nursery, Berlin, in the late 1890s and early 1900s as U. montana triserrata Kirch. . Green considered 'Triserrata' a synonym of U. glabra 'Cornuta'; herbarium leaf-specimens of Späth's cultivar, however, show a deeply-toothed triserrate leaf-margin rather than a tricuspidate leaf.

Description
U. triserrata Hort. (syn. U. intermedia Hort. ) was described in Petzold and Kirchner as "very similar to U. montana, but the leaves appear to be firmer, a little shorter, and widened towards the tip. The tip is very sharp-pointed, likewise the two large teeth, one on each side, in consequence of which the leaf appears tricuspidate. A form similar in appearance but less pronounced occurs in U. montana." Späth catalogues describe the leaf of U. montana triserrata as "usually three-pointed", but herbarium leaf-specimens in the Royal Botanic Garden Edinburgh from Späth's specimens show a non-cuspidate leaf with a triserrate (triple-toothed) margin (see External links below).

Pests and diseases
Not known.

Cultivation
No specimens are known to survive. One tree was planted in 1897 as U. montana laciniata syn. U. montana triserrata at the Dominion Arboretum, Ottowa, Canada. Three specimens supplied by Späth to the RBGE in 1902 as U. montana triserrata may survive in Edinburgh, as it was the practice of the Garden to distribute trees about the city (viz. the Wentworth Elm); the current list of Living Accessions held in the Garden per se does not list the plant.

North America

 * Dominion Arboretum, Ottawa, Canada. Accession no. 2606

Europe
None known.