The putative Wych Elm cultivar Ulmus glabra 'Holgeri' originated in Sweden, where it was described by Holger Jensen of Ramlösa Plantskola, Helsingborg, in 1921.[1][2] It was distributed by the Späth nursery of Berlin in the 1920s and '30s as Ulmus montana Holgeri.[3][4] Späth used U. montana both for wych and for U. × hollandica hybrids like 'Dampieri',[5] so the name does not necessarily imply a wych cultivar. In The Netherlands the tree was classified as an Ulmus × hollandica hybrid, a 1932 herbarium specimen from a tree in The Hague supplied by Späth being labelled Ulmus hollandica var. holgeri (Jensen).[6]
| Ulmus glabra 'Holgeri' | |
|---|---|
| Species | Ulmus glabra |
| Cultivar | 'Holgeri' |
| Origin | Sweden |
Description
edit'Holgeri' was described as straight and sturdy, of very strong growth, with beautiful dark green leaves.[1] The herbarium specimen from The Hague appears to show hybrid leaves, without the abrupt tapering and "shoulder" of wych elm.[6]
Pests and diseases
editCultivars of both wych and U. × hollandica are susceptible to Dutch elm disease.
Cultivation
editNo specimens are known to survive.
References
edit- ^ a b Green, Peter Shaw (1964). "Registration of cultivar names in Ulmus". Arnoldia. 24 (6–8). Arnold Arboretum, Harvard University: 41–80. Retrieved 16 February 2017.
- ^ Späth-Buch, 1720-1920 : Geschichte und Erzeugnisse der Späth'schen Baumschule, p.230 (Berlin 1921)
- ^ Späth, L., Catalogue 230 (1927-28; Berlin), p.79
- ^ Späth, Ludwig (1930). Späth-Buch, 1720-1930. Berlin: Self published. pp. 311–313, 351–352.
- ^ RBGE Späth list 1902
- ^ a b bioportal.naturalis.nl, specimen WAG.1847163
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