Platycarya

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Platycarya
Temporal range: Early Eocene–Recent
Platycarya strobilacea1.jpg
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
Nakai
Genus: Platycarya
Siebold & Zucc.
Species
  • Platycarya strobilacea
  • † Hickey[1]
  • † (Chandler) Wing & Hickey
  • † (Lesquereux) Wing & Hickey
  • † Wing & Hickey
  • † Hu & Chaney
  • † (Hollick) Wolfe
  • † (Bowerbank) M.Chandler[1]
Synonyms
  • Fortunaea Lindl.
  • Petrophiloides E.Reid & M.Chandler

Platycarya is a genus of flowering plants in the family Juglandaceae native to eastern Asia in China, Korea, and Japan.[2][3]

Platycarya strobilacea

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.[2][3]

The genus was formerly treated as comprising a single species Platycarya strobilacea, though the second living species is now recognized.[4] A number of fossil species have been discovered across the Northern Hemisphere dating from the Early Eocene,[5] although they became confined to East Asia during the Pleistocene ice ages.[6][7]

  • Hickey[1]
  • Platycarya bognorensis (Chandler) Wing & Hickey
  • Platycarya castaneopsis (Lesquereux) Wing & Hickey
  • Platycarya manchesterii Wing & Hickey
  • Platycarya miocenica Hu & Chaney
  • Platycarya pseudobrauni (Hollick) Wolfe
  • (sic P. richardsonii) (Bowerbank) Chandler[1][8]

References[]

  1. ^ a b c d "Fossilworks: Platycarya".
  2. ^ a b Flora of China: Platycarya
  3. ^ a b Flora of China: Platycarya strobilacea
  4. ^ 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.
  5. ^ 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.
  6. ^ 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.
  7. ^ Sutton, Julian (2019). "'Platycarya' from the website Trees and Shrubs Online". Retrieved 2022-01-25.
  8. ^ Manchester, S. (1987). "Fossil History of the Juglandaceae". Annals of the Missouri Botanical Garden. 21: 1–137.


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