Ulmus 'Monstrosa'

Description

'Monstrosa' was described as a compact shrub, with branchlets often fasciated, and leaves 5–8 cm long, partly pitcher-shaped at the base, on slender stalks

Pests and diseases

The degree of the tree's susceptibility to Dutch elm disease (DED) is unknown. It has been noted that shrub-elms are usually less prone to infection.

Cultivation

No specimens are known to survive. U. montana monstrosa was introduced to the Dominion Arboretum, Ottawa, Canada, probably from Späth, in 1899. A specimen obtained from Späth as U. montana monstrosa and planted in 1916, stood in the Ryston Hall arboretum, Norfolk, in the early 20th century. There were specimens in Arnold Arboretum, Massachusetts, and in Belmonte Arboretum, Wageningen, in the mid-20th century.

The shrub elm sold in the Netherlands as 'Monstrosa' is the cultivar 'Nana'. 'Nana Monstrosa' was an old synonym of 'Monstrosa'.

Synonymy

• Ulmus campestris var. monstrosa: Lavallée, Arboretum Segrezianum 235, 1877
• Ulmos scabra var. monstrosa, Hartwig, Illustrirtes Gehölzbuch ed. 2, 294, 1892.
• Ulmus scabra (: glabra) var. monstrosa Hort.; Krüssmann, Handbuch der Laubgehölze 2: 536, 1962, as a cultivar.
• Ulmus scabra (:glabra) f. nana monstrosa Schneid.

References

References

1. [https://kiki.huh.harvard.edu/databases/botanist_search.php?id=353 kiki.huh.harvard.edu]
2. [https://archive.org/stream/arboretumsegrezi00lava#page/236/mode/2up ''Arboretum Segrezianum'' 235, 1877]
3. is not a feature of [[wych elm]] ''U. glabra'' Huds., and is even less likely in a shrub form of this species, the wych-cultivar error arose early, perhaps because the [[Späth nursery]] of Berlin, using ''Ulmus montana'' both for some ''[[Ulmus × hollandica]]'' cultivars and for wych varieties, listed it c.1890 as ''Ulmus montana monstrosa''. Hartwig in ''Illustrirtes Gehölzbuch'' (1892) followed with ''Ulmus scabra monstrosa'',Hartwig, ''Illustrirtes Gehölzbuch'' ed. 2, 294, 1892
4. Johann Gerd Krüssmann, ''Handbuch der Laubgehölze'' 2: 536, 1962
5. Green, Peter Shaw. (1964). "Registration of cultivar names in Ulmus". [[Arnold Arboretum]], [[Harvard University]].
6. [https://archive.org/details/SpaethL1890 Späth, L., Catalogue 79 (1890–91; Berlin), p.114]
7. (1902–1903). "Katalog". L. Späth Baumschulenweg.
8. [https://archive.org/details/SpaethL158.1913B Späth, L., Catalogue 158 (1913–14; Berlin), p.138]
9. [http://www.dendrology.lu/wp-content/uploads/2018/05/GMJ_Weeping_cultivars-1.pdf#page=6 Rafaël Govaerts, Kris Michielsen and Eike Jablonski, 'Untraced weeping broadleaf cultivars: an overview', dendrology.lu]
10. (1899). "Catalogue of the trees and shrubs in the arboretum and botanic gardens at the central experimental farm".
11. [https://www.rystonhall.co.uk/ rystonhall.co.uk/]
12. (c. 1920). "Ryston Hall Arboretum catalogue".
13. {{Naturalis Biodiversity Center
14. {{Naturalis Biodiversity Center
15. Photographs of plant sold as 'Monstrosa' in Holland: Herman Geers Dwarf & Miniature Plants,[http://hgeers.nl/Ulmus/3882] {{Webarchive. link. (2016-03-05)
16. Krüssman, Gerd, ''Manual of Cultivated Broad-Leaved Trees & Shrubs'' (1984 vol. 3)