Platycarya

Platycarya is a genus of flowering plants in the family Juglandaceae native to eastern Asia in China, Korea, and Japan.[1][2]

Platycarya strobilacea

Platycarya
Temporal range:
Autumn foliage and fruit
Scientific classification e
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fagales
Family: Juglandaceae
Subfamily: Juglandoideae
Tribe: Platycaryeae
Genus: Platycarya
Siebold & Zucc.
Species
  • See text
Synonyms
  • Fortunaea Lindl.
  • Petrophiloides E.Reid & M.Chandler

It is a deciduous tree growing to 15 m tall. The leaves are usually pinnate, 15–30 cm long with 7–15 leaflets (rarely simple, or with up to 23 leaflets), the terminal leaflet present; the leaflets are 3–11 cm long and 1.5–3.5 cm broad. The flowers are presented as catkins; the male (pollen) catkins are 2–15 cm long, the female catkins 2.5–5 cm long at maturity, hard and woody, superficially resembling a conifer cone with spirally arranged scales.[1][2]

The genus was formerly treated as comprising a single species Platycarya strobilacea, though the second living species Platycarya longzhouensis is now recognized.[3] A number of fossil species have been discovered across the Northern Hemisphere dating from the Early Eocene,[4] although they became confined to eastern Asia during the Pleistocene ice ages.[5][6]

  • †Platycarya americana Hickey[7]
  • †Platycarya bognorensis (Chandler) Wing & Hickey
  • †Platycarya castaneopsis (Lesquereux) Wing & Hickey
  • †Platycarya manchesterii Wing & Hickey
  • †Platycarya miocenica Hu & Chaney
  • †Platycarya pseudobrauni (Hollick) Wolfe
  • †Platycarya richardsoni (sic P. richardsonii) (Bowerbank) Chandler[7][8]

References
  1. Flora of China: Platycarya
  2. Flora of China: Platycarya strobilacea
  3. Wan, Q.; Zheng, Z.; Huang, K.; Guichoux, E.; Petit, R. J. (2017). "Genetic divergence within the monotypic tree genus Platycarya (Juglandaceae) and its implications for species' past dynamics in subtropical China". Tree Genetics & Genomes. 13 (4): 1–11. doi:10.1007/s11295-017-1153-9. S2CID 25199346.
  4. Wing, S. L.; Hickey, L. J. (1984). "The Platycarya perplex and the evolution of the Juglandaceae". American Journal of Botany. 71 (3): 388–411. doi:10.1002/j.1537-2197.1984.tb12525.x.
  5. Wing, Scott L.; Hickey, Leo J. (1984). "The Platycarya Perplex and the Evolution of the Juglandaceae". American Journal of Botany. 71 (3): 388–411. doi:10.2307/2443497. JSTOR 2443497.
  6. Sutton, Julian (2019). "'Platycarya' from the website Trees and Shrubs Online". Retrieved 2022-01-25.
  7. "Fossilworks: Platycarya".
  8. Manchester, S. (1987). "Fossil History of the Juglandaceae". Annals of the Missouri Botanical Garden. 21: 1–137.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.