Ulmus serotina

Species of tree

Ulmus serotina
Ulmus serotina, Cheekwood, Nashville, TN
Conservation status

Least Concern  (IUCN 3.1)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Ulmaceae
Genus: Ulmus
Subgenus: U. subg. Oreoptelea
Section: U. sect. Chaetoptelea
Species:
U. serotina
Binomial name
Ulmus serotina
Sarg.
Generalized natural range of Ulmus serotina in the US
Synonyms
  • Ulmus divaricata C. H. Mull.
  • Ulmus multinervosa C. H. Mull.

Ulmus serotina Sarg., the September elm, is an autumn-flowering North American species of tree. It is uncommon beyond Tennessee; it is only very locally distributed through Illinois, Kentucky, Arkansas, Mississippi, Oklahoma, Alabama, and Georgia, and disjunct populations into Nuevo León, Mexico.[2] It grows predominantly on limestone bluffs and along streams to elevations of 400 m.[3]

Description

Rarely exceeding 20 m in height, the tree has a rounded crown with spreading to pendulous branches. The glabrous young shoots become progressively corky-winged with age, and bear oblong to obovate leaves <8 cm long.[4] The wind-pollinated apetalous perfect flowers form pendulous racemes, which open in September and serve to distinguish the species from its cogenitor, the cedar elm U. crassifolia, with which it readily hybridizes. The samarae are oblong-elliptical, 10–15 mm in length, deeply divided at the apex, and ripen in November [1].

  • U. serotina bark
    U. serotina bark
  • Bole of same
    Bole of same
  • U. serotina foliage
    U. serotina foliage
  • U. serotina in fruit
    U. serotina in fruit
  • September elm in October, Elmwood Cemetery, Memphis, Tennessee (2010)
    September elm in October, Elmwood Cemetery, Memphis, Tennessee (2010)

Pests and diseases

The species is highly susceptible to Dutch elm disease.

Cultivation

Before the outbreak of Dutch elm disease, U. serotina enjoyed limited popularity as a shade tree in the southern part of its range. The tree grows well on most soils, but is intolerant of anaerobic or saline conditions; it is also frost tolerant to -30°C (-23°F). The September elm is very rare in cultivation in Europe;[5] it was briefly propagated and marketed in the UK by the Hillier and Sons nursery, Winchester, Hampshire, from 1972 to 1977, when 16 were sold.[6][7] It is not known to have been introduced to Australasia. No cultivars of this taxon are known, nor is it known to be in commerce.

Notable trees

Hybrids

  • Ulmus × arkansana [: U. serotina × U. crassifolia ]. Present in Arkansas and Oklahoma.[11][12][13][14][15][16][17]

Accessions

North America
Europe
Wikimedia Commons has media related to Ulmus serotina.

References

  1. ^ IUCN SSC Global Tree Specialist Group.; Botanic Gardens Conservation International; et al. (BGCI) (2020). "Ulmus serotina". IUCN Red List of Threatened Species. 2020: e.T152858625A152905642. doi:10.2305/IUCN.UK.2020-1.RLTS.T152858625A152905642.en. Retrieved 19 November 2021.
  2. ^ Todzia, C. A.; Panero, J. L. (1998), "A new species of Ulmus (Ulmaceae) from southern Mexico and a synopsis of the species in Mexico", Brittonia, 50 (3): 343–347, doi:10.2307/2807778, JSTOR 2807778, S2CID 21320752
  3. ^ Duncan, W. H., & Duncan, M. B. (2000). Trees of the Southeastern United States, 234–238. Athens, Georgia, USA. ISBN 0-8203-2271-7
  4. ^ "Ulmus serotina Sarg.". Herbarium catalogue. Board of Trustees of the Royal Botanic Gardens, Kew. Retrieved 17 October 2016.
  5. ^ Bean, W. J. (1981). Trees and shrubs hardy in Great Britain, 7th edition. Murray, London.
  6. ^ Hillier & Sons (1977). Catalogue of Trees & Shrubs. Hillier, Ampfield, UK.
  7. ^ Hillier & Sons Sales inventory 1962 to 1977 (unpublished).
  8. ^ "September Elm - OH". American Forests. Retrieved 2023-10-03.
  9. ^ "Spring Grove Cemetery - Champions of the Grove". Spring Grove Cemetery.
  10. ^ "Ghost Trees: The champion September elm". Vanderbilt University. Retrieved 2023-10-03.
  11. ^ U. × arkansana information in U. serotina article, efloras.org
  12. ^ Herbarium specimen labelled U. crassifolia × U. serotina, St. Francis County, Arkansas, 1967; Duke University Herbarium no. 10074806
  13. ^ Herbarium specimen labelled U. crassifolia × U. serotina, St. Francis County, Arkansas, 1967; Tulane University Herbarium no. 0048399
  14. ^ Herbarium specimen labelled U. crassifolia × U. serotina, St. Francis County, Arkansas, 1967; Mississippi Museum of Natural Science Herbarium no. 002200
  15. ^ Herbarium specimen labelled U. crassifolia × U. serotina, St. Francis County, Arkansas, 1967; Mississippi State University Herbarium no. 036765
  16. ^ Herbarium specimen labelled U. × arkansana (?), Pulaski County, Arkansas, 2016; Arkansas Natural Heritage Commission Herbarium no. 009182
  17. ^ Herbarium specimen labelled U. aff. crassifolia, probably U. × arkansana, Pulaski County, Arkansas, 2012; Austin Peay State University Herbarium no. 0053465
  18. ^ Royal Botanic Garden Edinburgh, UK. RBGE Catalogue of the Living Collections, data.rbge.org.uk Labelled Ulmus serotina. Acc. no. 20080091D. Collected in United States of America (2007).
  • U. serotina, Flora of North America, www.efloras.org
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Species, varieties and subspecies
  • U. alata (Winged elm)
  • U. americana (American elm)
  • U. americana var. floridana (Florida elm)
  • U. bergmanniana (Bergmann's elm)
  • U. bergmanniana var. bergmanniana
  • U. bergmanniana var. lasiophylla
  • U. castaneifolia (Chestnut-leafed or multinerved elm)
  • U. changii (Hangzhou elm)
  • U. changii var. changii
  • U. changii var. kunmingensis (Kunming elm)
  • U. chenmoui (Chenmou or Langya Mountain elm)
  • U. chumlia
  • U. crassifolia (Cedar or Texas cedar elm)
  • U. davidiana (David or Father David elm)
  • U. davidiana var. davidiana
  • U. davidiana var. japonica (Japanese elm)
  • U. elongata (Long raceme elm)
  • U. gaussenii (Anhui or hairy elm)
  • U. glabra (Wych or scots elm)
  • U. glaucescens (Gansu elm)
  • U. glaucescens var. glaucescens
  • U. glaucescens var. lasiocarpa (hairy-fruited glaucescent elm)
  • U. harbinensis (Harbin elm)
  • U. ismaelis
  • U. laciniata (Manchurian cut-leaf or lobed elm)
  • U. laciniata var. nikkoensis (Nikko elm)
  • U. laevis (European white elm)
  • U. laevis var. celtidea
  • U. laevis var. parvifolia
  • U. laevis var. simplicidens
  • U. lamellosa (Hebei elm)
  • U. lanceifolia (Vietnam elm)
  • U. macrocarpa (Large-fruited elm)
  • U. macrocarpa var. glabra
  • U. macrocarpa var. macrocarpa
  • U. mexicana (Mexican elm)
  • U. microcarpa (Tibetan elm)
  • U. minor (Field elm)
  • U. minor subsp. minor
  • U. minor var. italica
  • U. parvifolia (Chinese or lacebark elm)
  • U. parvifolia var. coreana (Korean elm)
  • U. prunifolia (Cherry-leafed elm)
  • U. pseudopropinqua (Harbin spring elm)
  • U. pumila (Siberian elm)
  • U. rubra (Slippery elm)
  • U. serotina (September elm)
  • U. szechuanica (Szechuan (Sichuan) or red-fruited elm)
  • U. thomasii (Rock or cork elm)
  • U. uyematsui (Alishan elm)
  • U. villosa (Cherry-bark or marn elm)
  • U. wallichiana (Himalayan or kashmir elm)
  • U. wallichiana subsp. wallichiana
  • U. wallichiana subsp. xanthoderma
  • U. wallichiana var. tomentosa
Disputed species, varieties and subspecies
  • U. boissieri
  • U. minor subsp. canescens (Grey, grey-leafed or hoary elm)
  • U. elliptica
Hybrids
  • U. davidiana var. japonica × U. minor
  • U. × arbuscula
  • U. × arkansana
  • U. × brandisiana
  • U. × diversifolia
  • U. × hollandica (Dutch elm)
  • U. × hollandica var. insularum
  • U. × intermedia
  • U. × mesocarpa
Species cultivars
American elm
Cedar elm
Chinese elm
European white elm
Field elm
Japanese elm
Siberian elm
Winged elm
Wych elm
Hybrid cultivars
Dutch elm
U. × intermedia
Unconfirmed derivation cultivarsFossil elms
  • U. okanaganensis
Taxon identifiers
Ulmus serotina