The elm cultivar ''Ulmus'' 'Nigrescens' was identified by Pynaertbr>
as ''Ulmus campestris betulaefolia nigrescens''. Considered by Green to be "probably ''Ulmus carpinifolia (: minor)'', but said to have been raised from seed of Purpurea".

Description

The 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

No specimens are known to survive.

Synonymy

NB. 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

{{Elm species, varieties, hybrids, hybrid cultivars and species cultivars , state=collapsed Ulmus articles missing images Ulmus Missing elm cultivars