Ulmus glabra 'Holgeri'
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
'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 (see 'External links').
Pests and diseases
Cultivars of both wych and U. × hollandica are susceptible to Dutch elm disease.
Cultivation
No specimens are known to survive.
References
- Green, Peter Shaw (1964). "Registration of cultivar names in Ulmus". Arnoldia. Arnold Arboretum, Harvard University. 24 (6–8): 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
- bioportal.naturalis.nl, specimen WAG.1847163
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External links
- "Herbarium specimen - WAG.1847163". Botany catalogues. Naturalis Biodiversity Center.