The American Elm cultivar Ulmus americana 'Incisa' was first described by Loudon in 1838 from a specimen in the Horticultural Society's Garden.[1]
| Ulmus americana 'Incisa' | |
|---|---|
 The cut-leaved American Elm (Loudon) | |
| Species | Ulmus americana |
| Cultivar | 'Incisa' |
| Origin | England |
Description
editThe tree had "leaves somewhat more deeply serrated and rather smaller" than the type, Loudon likening them to those of Ulmus effusa.[1][2][3]
Cultivation
editThe specimen in the Horticultural Society's Garden was 27 ft tall in 1834; Loudon considered it striking enough for a plate (Arboretum et fruticetum britannicum; Vol.II).[1] No specimens are known to survive, though forms with deeply serrated leaves sometimes occur in the wild.[3]
References
edit- ^ a b c Loudon, J. C., Arboretum et fruticetum britannicum;, Vol.III, 1883; p.1406
- ^ Green, Peter Shaw (1964). "Registration of cultivar names in Ulmus". Arnoldia. 24 (6–8). Arnold Arboretum, Harvard University: 41–80. Retrieved 16 February 2017.
- ^ a b "Herbarium specimen - L.1590895". Botany catalogues. Naturalis Biodiversity Center. Leaves of an U. americana f. matching description of cultivar 'Incisa' (Iowa, 1956)