Vanda christensoniana is a species of orchid endemic to Vietnam.[1] The specific epithet christensoniana honours the botanist and taxonomist Eric Christenson.[2]
This file shows the changes of a Vanda christensoniana flower after pollination. Three developmental stages are shown. The first shows a fully open flower with an open stigmatic cavity (a), the second shows a pollinated flower with swollen column and a closed stigmatic cavity (b) and the third shows a developing capsule fruit and wilted sepals, petals and labellum (c).
It has a monopodial growth habit. The leaves are remarkable, as they are unusually purple for a Vanda. The purple foliage permits this plant to grow in full sun, as the accumulation of anthocyanins near the plant surface filters light and improves photoprotection.[3] This feature is also strongly expressed in hybrids. The flowers are rose or purple to white and are produced on 2-4 relatively short, densely many-flowered inflorescences.[2]
Taxonomyedit
This species is closely related to Vanda malipoensis and Vanda nana. The phylogenetic tree based on the plastid genome (i.e. the maternal line) indicates, that it is separate from other section Ascocentrum species. Section Ascocentrum is shown to be in part paraphyletic, depending on which genetic material is examined. The nuclear genome results in different relationships. This inconsistency can be explained by hybrid speciation.[4] This phylogenetic tree and the placement of Vanda christensoniana close to section Ascocentropsis, instead of section Ascocentrum, is confirmed in a second study.[5]
sect. Ascocentropsis
Vanda nana
Vanda malipoensis
sect. Ascocentrum
Vanda christensoniana
Referencesedit
^"Vanda christensoniana (Haager) L.M.Gardiner | Plants of the World Online | Kew Science". powo.science.kew.org. Retrieved 24 February 2022.
^ abMotes, M. R. (2021). The Natural Genus Vanda. Redland Press.
^Zhang, Q., Zhai, J., Shao, L., Lin, W., & Peng, C. (2019). Accumulation of anthocyanins: an adaptation strategy of Mikania micrantha to low temperature in winter. Frontiers in Plant Science, 10, 1049.
^Zou, L. H., Liu, Z. J., & Huang, J. X. (2014). Vanda malipoensis, a new species of Vanda (Orchidaceae: Epidendroideae; Vandeae) from China: evidence from morphological and molecular phylogenetic analyses. Phytotaxa, 186(2), 87-96.
^Zou, L. H., Wu, X. Y., Lin, M. I. N., Chen, L. J., & Liu, Z. J. (2016). Vanda funingensis, a new species of Orchidaceae (Epidedroideae; Vandeae; Aeridinae) from China: evidence from morphology and DNA. Phytotaxa, 260(1), 1-13.
External linksedit
Media related to Vanda christensoniana at Wikimedia Commons
This Vandeae-related article is a stub. You can help Wikipedia by expanding it.
vanda, christensoniana, species, orchid, endemic, vietnam, specific, epithet, christensoniana, honours, botanist, taxonomist, eric, christenson, scientific, classification, kingdom, plantae, clade, tracheophytes, clade, angiosperms, clade, monocots, order, asp. Vanda christensoniana is a species of orchid endemic to Vietnam 1 The specific epithet christensoniana honours the botanist and taxonomist Eric Christenson 2 Vanda christensoniana Scientific classification Kingdom Plantae Clade Tracheophytes Clade Angiosperms Clade Monocots Order Asparagales Family Orchidaceae Subfamily Epidendroideae Genus Vanda Species V christensoniana Binomial name Vanda christensoniana Haager L M Gardiner distribution of Vanda christensoniana Synonyms Ascocentrum christensonianum Haager This file shows the changes of a Vanda christensoniana flower after pollination Three developmental stages are shown The first shows a fully open flower with an open stigmatic cavity a the second shows a pollinated flower with swollen column and a closed stigmatic cavity b and the third shows a developing capsule fruit and wilted sepals petals and labellum c Contents 1 Description 2 Taxonomy 3 References 4 External linksDescription editIt has a monopodial growth habit The leaves are remarkable as they are unusually purple for a Vanda The purple foliage permits this plant to grow in full sun as the accumulation of anthocyanins near the plant surface filters light and improves photoprotection 3 This feature is also strongly expressed in hybrids The flowers are rose or purple to white and are produced on 2 4 relatively short densely many flowered inflorescences 2 Taxonomy editThis species is closely related to Vanda malipoensis and Vanda nana The phylogenetic tree based on the plastid genome i e the maternal line indicates that it is separate from other section Ascocentrum species Section Ascocentrum is shown to be in part paraphyletic depending on which genetic material is examined The nuclear genome results in different relationships This inconsistency can be explained by hybrid speciation 4 This phylogenetic tree and the placement of Vanda christensoniana close to section Ascocentropsis instead of section Ascocentrum is confirmed in a second study 5 sect Ascocentropsis Vanda nana Vanda malipoensis sect Ascocentrum Vanda christensonianaReferences edit Vanda christensoniana Haager L M Gardiner Plants of the World Online Kew Science powo science kew org Retrieved 24 February 2022 a b Motes M R 2021 The Natural Genus Vanda Redland Press Zhang Q Zhai J Shao L Lin W amp Peng C 2019 Accumulation of anthocyanins an adaptation strategy of Mikania micrantha to low temperature in winter Frontiers in Plant Science 10 1049 Zou L H Liu Z J amp Huang J X 2014 Vanda malipoensis a new species of Vanda Orchidaceae Epidendroideae Vandeae from China evidence from morphological and molecular phylogenetic analyses Phytotaxa 186 2 87 96 Zou L H Wu X Y Lin M I N Chen L J amp Liu Z J 2016 Vanda funingensis a new species of Orchidaceae Epidedroideae Vandeae Aeridinae from China evidence from morphology and DNA Phytotaxa 260 1 1 13 External links edit nbsp Media related to Vanda christensoniana at Wikimedia Commons nbsp This Vandeae related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Vanda christensoniana amp oldid 1112175831, wikipedia, wiki, book, books, library,
