The elm cultivar Ulmus 'Nigrescens' was identified by Pynaert [1] as Ulmus campestris betulaefolia nigrescens. Considered by Green [1] to be "probably Ulmus carpinifolia (: minor), but said to have been raised from seed of Purpurea".
| Ulmus 'Nigrescens' | |
|---|---|
| Genus | Ulmus |
| Cultivar | 'Nigrescens' |
| Origin | Europe |
Description
editThe tree was described as having leaves like those of the Birch, and with a darker and more persistent hue than the Wych Elm cultivar 'Purpurea'.
Cultivation
editNo specimens are known to survive.
Synonymy
editNB. Nigricans: Bailey & Bailey, Hortus 625, 1930, as U. (americana) nigricans, name in synonymy for U. americana f. nigrescens, not U. campestris betulifoliae nigrescens Pynaert.
References
edit- ^ Green, Peter Shaw (1964). "Registration of cultivar names in Ulmus". Arnoldia. 24 (6–8). Arnold Arboretum, Harvard University: 41–80. Retrieved 16 February 2017.