Sequoiadendron

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Sequoiadendron
Giant sequoias in Sequoia National Park 02 2013.jpg
Trees in Sequoia National Park
Scientific classification e
Kingdom: Plantae
Clade: Tracheophytes
Clade: Gymnosperms
Division: Pinophyta
Class: Pinopsida
Order: Cupressales
Family: Cupressaceae
Subfamily: Sequoioideae
Genus: Sequoiadendron
J.Buchholz
Species
Synonyms[1]
Sequoiadendron synonymy
  • Americus
    Hanford, rejected name
  • Steinhauera C.Presl 1838, not Goepp. 1835 (Altingiaceae)
  • Washingtonia Winslow 1854, rejected name, not H. Wendl. 1879 (Arecaceae) not Raf. ex J.M. Coult. & Rose 1900 (Apiaceae)
  • Wellingtonia Lindl. 1853, illegitimate homonym, not Meisn. 1840 (Sabiaceae)

Sequoiadendron is a genus of evergreen trees, with two species, only one of which survives to the present:[1]

Fossil record[edit]

Sequoiadendron chaneyi foliage fossil, Nevada

Sequoiadendron fossil pollen and macrofossils may have been found as early as the Cretaceous[5] and throughout the Northern Hemisphere,[6] including locations in western Georgia in the Caucasus region.[7]

References[edit]

  1. ^ a b "Kew World Checklist of Selected Plant Families".
  2. ^ "Wellingtonia - Sequoiadendron giganteum". NatureSpot. Retrieved 2022-01-27.
  3. ^ "2013 county distribution map". Biota of North America.
  4. ^ Axelrod, Daniel L. (1959). "Late Cenozoic evolution of the Sierran Bigtree forest". Evolution. 13 (1): 9–23. doi:10.1111/j.1558-5646.1959.tb02990.x. JSTOR 2405942.
  5. ^ Sokolova, AB; Moiseeva, MG (2016). "A new species of the genus Sequoiadendron Buchholz (Cupressaceae) from the Upper Cretaceous of the Enmyvaam River Basin, Central Chukotka". Paleontological Journal. 50 (1): 96–107. doi:10.1134/S003103011601010X. S2CID 129990538.
  6. ^ Chaney, Ralph W (1950). "A Revision of Fossil Sequoia and Taxodium in Western North America Based on the Recent Discovery of Metasequoia". Transactions of the American Philosophical Society. 40 (3): 188. doi:10.2307/1005641. JSTOR 1005641.
  7. ^ Shatilova, Irina; Mchedlishvili, Nino; Rukhadze, Luara; Kvavadze, Eliso (2011). The History of the Flora and Vegetation of Georgia. Tbilisi: Georgian National Museum Institute of Paleobiology. ISBN 978-9941-9105-3-1.