Hesperocyparis

Hesperocyparis
	Hesperocyparis macrocarpa, Monterey cypress
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Gymnosperms
Division:	Pinophyta
Class:	Pinopsida
Order:	Pinales
Family:	Cupressaceae
Subfamily:	Cupressoideae
Genus:	Hesperocyparis; Bartel & R. A. Price
Synonyms
	Neocupressus de Laub. [nom. superfl.];

Hesperocyparis (western cypress)^[1] is a genus of trees in the family Cupressaceae, containing North American species otherwise assigned to the genus Cupressus.^[2] They are found throughout western North America. Only a few species have wide ranges, with most being restricted-range endemics.

Members of Hesperocyparis were and still are placed in Cupressus by many authorities, but phylogenetic evidence supports a different affinity. A 2021 molecular study found Hesperocyparis to be the sister group to the genus Callitropsis (containing only the Nootka cypress), with this clade being sister to the Asian genus Xanthocyparis, containing only the Vietnamese golden cypress. The clade comprising all three genera was found to be sister to a clade containing Juniperus and Cupressus sensu stricto.^[3]

This genus contains the following species:^[2]

Hesperocyparis abramsiana (C. B. Wolf) Bartel
Hesperocyparis arizonica (Greene) Bartel
Hesperocyparis bakeri (Jeps.) Bartel
Hesperocyparis benthamii (Endl.) Bartel
Hesperocyparis forbesii (Jeps.) Bartel
Hesperocyparis glabra (Sudw.) Bartel
Hesperocyparis goveniana (Gordon) Bartel
Hesperocyparis guadalupensis (S. Watson) Bartel
Hesperocyparis lusitanica (Mill.) Bartel
Hesperocyparis macnabiana (A. Murray bis) Bartel
Hesperocyparis macrocarpa (Hartw.) Bartel
Hesperocyparis montana (Wiggins) Bartel
Hesperocyparis nevadensis (Abrams) Bartel
Hesperocyparis pigmaea (Lemmon) Bartel
Hesperocyparis sargentii (Jeps.) Bartel
Hesperocyparis stephensonii (Jeps.) Bartel

References

^ USDA, NRCS (n.d.). "Hesperocyparis". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 14 May 2015.
^ ^a ^b Robert P. Adams, Jim A. Bartel & Robert A. Price (2009). "A new genus, Hesperocyparis, for the cypresses of the Western Hemisphere" (PDF). Phytologia. 91 (1): 160–185.
^ Stull, Gregory W.; Qu, Xiao-Jian; Parins-Fukuchi, Caroline; Yang, Ying-Ying; Yang, Jun-Bo; Yang, Zhi-Yun; Hu, Yi; Ma, Hong; Soltis, Pamela S.; Soltis, Douglas E.; Li, De-Zhu (July 19, 2021). "Gene duplications and phylogenomic conflict underlie major pulses of phenotypic evolution in gymnosperms". Nature Plants. 7 (8): 1015–1025. doi:10.1038/s41477-021-00964-4. ISSN 2055-0278.

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[1] USDA, NRCS (n.d.). "Hesperocyparis". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 14 May 2015.

[Adams-2] Robert P. Adams, Jim A. Bartel & Robert A. Price (2009). "A new genus, Hesperocyparis, for the cypresses of the Western Hemisphere" (PDF). Phytologia. 91 (1): 160–185.

[3] Stull, Gregory W.; Qu, Xiao-Jian; Parins-Fukuchi, Caroline; Yang, Ying-Ying; Yang, Jun-Bo; Yang, Zhi-Yun; Hu, Yi; Ma, Hong; Soltis, Pamela S.; Soltis, Douglas E.; Li, De-Zhu (July 19, 2021). "Gene duplications and phylogenomic conflict underlie major pulses of phenotypic evolution in gymnosperms". Nature Plants. 7 (8): 1015–1025. doi:10.1038/s41477-021-00964-4. ISSN 2055-0278.

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Hesperocyparis

References

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