Euptelea

Euptelea is a genus of two species[2] of flowering plants in the monogeneric family Eupteleaceae. The genus is found from Assam east through China to Japan, and consists of shrubs or small trees:

Euptelea
Temporal range: Paleocene–Recent
Euptelea polyandra
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Ranunculales
Family: Eupteleaceae
K.Wilh.[1]
Genus: Euptelea
Siebold & Zucc.
Species

The genus was previously placed in the family Trochodendraceae, but the family Eupteleaceae has been recognized by many taxonomists. The APG IV system (2016;[1] unchanged from the APG III system of 2009,[3] the APG II system of 2003 and the APG system of 1998), recognizes it and places it in the order Ranunculales, in the clade eudicots. The family consists of a single genus Euptelea, with two species, native to eastern Asia.

Euptelea polyandra is used as a food plant by the larvae of some Lepidoptera species including the engrailed.

The flowers lack sepals and petals. The anthers are basifixed, and the leaves are arranged in whorls.[4]

The fossil range of the genus extends back to the Paleocene epoch, during much of the Cenozoic it was distributed widely over the Northern Hemisphere.[5]

References
  1. Angiosperm Phylogeny Group (2016). "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG IV". Botanical Journal of the Linnean Society. 181 (1): 1–20. doi:10.1111/boj.12385. ISSN 0024-4074.CS1 maint: uses authors parameter (link)
  2. Christenhusz, M. J. M.; Byng, J. W. (2016). "The number of known plants species in the world and its annual increase". Phytotaxa. 261 (3): 201–217. doi:10.11646/phytotaxa.261.3.1.
  3. Angiosperm Phylogeny Group (2009), "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III", Botanical Journal of the Linnean Society, 161 (2): 105–121, doi:10.1111/j.1095-8339.2009.00996.x, archived from the original on 2017-05-25, retrieved 2010-12-10
  4. Yi Ren, Hong-Fang Li, Liang Zhao, and Peter K. Endress. 2007. "Floral Morphogenesis in Euptelea (Eupteleaceae, Ranunculales)." Annals of Botany 100(2):185-193. (see "External links" below).
  5. Cao, Ya-Nan; Comes, Hans Peter; Sakaguchi, Shota; Chen, Lu-Yao; Qiu, Ying-Xiong (December 2016). "Evolution of East Asia's Arcto-Tertiary relict Euptelea (Eupteleaceae) shaped by Late Neogene vicariance and Quaternary climate change". BMC Evolutionary Biology. 16 (1): 66. doi:10.1186/s12862-016-0636-x. ISSN 1471-2148. PMC 4802896. PMID 27001058.
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