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Utania

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Utania
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Gentianales
Family: Gentianaceae
Tribe: Potalieae
Subtribe: Potaliinae
Genus: Utania
G.Don
Species

See text

Synonyms[1]
  • Kentia Steud.
  • Kuhlia Reinw.

Utania is a genus of flowering plants belonging to the gentian family (Gentianaceae), the tribe Potalieae, and the subtribe Potaliinae.[1][2] A small genus it has 12 species.

Description

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Small to medium trees, usually 1-3m tall, but occasionally up to 30m. The trunk is orthotropic (grows vertically), monopodial (growing upward from a single point), with continuous growth. Bark becomes fissured as tree ages. Features that distinguish this genus from other Gentianaceae include an architecture with continuous stem or trunk growth; branches that grow plagiotropic (inclined away from the vertical, inclined towards the horizontal) with a leaf arrangement that is distichous ("two rowed", where leaves are arranged in two vertical columns on opposite sides of the stem); non-resinous terminal vegetative buds; and an inflorescence that is pendulous and has a structure that is an elongate panicle with branching that is cymose (several pairs of branching, condensed, distinctly shorter than rachis), white flowers; the dried fruit (pale to dark brown at maturity) have a surface that is firm and smooth, with the epidermis not detaching from the pericarp.[3][4] Shared with some other genera, Utania has fruit that do not produce any latex and polygonal seeds.

Distribution

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Plants of the genus are found from Solomon Islands to the Andaman and Nicobar Islands in Tropical Asia.[1] Regions in which they are found include: Solomon Islands; Australia (Queensland, Northern Territory); Papua New Guinea mainland; Indonesia (Papua, West Papua, Maluku, Sulawesi, Kalimantan, Jawa; Sumatera); Philippines; Malaysia (Sabah, Sarawak, Peninsular Malaysia); Brunei; Singapore; Thailand; Vietnam; Cambodia; Laos; Myanmar; Nicobar Islands; Andaman Islands.

List of accepted species

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[1]

Cultivation

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References

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  1. ^ a b c d "Utania G.Don". Plants of the World Online (POWO). Royal Botanic Gardens, Kew. Retrieved 9 January 2021.
  2. ^ "Utania (Gentianaceae)". Wikispecies. Retrieved 9 January 2021.
  3. ^ Wong, K.M.; Sugumaran, M. (2012). "Studies in Malesian Gentianaceae II: A taxonomic framework for the Fagraea complex, including the new genus Limahlania". Gardens' Bulletin Singapore. 64 (2): 481–495. Retrieved 9 January 2021.
  4. ^ Sugumaran, M.; Wong, K.M. (2014). "Studies in Malesian Gentianaceae, VI. A revision of Utania in the Malay Peninsula with two new species". Plant Ecology and Evolution. 147 (2): 213–223. doi:10.5091/plecevo.2014.971.

Further reading

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  • Don, G. 1837. A General History of the Dichlamydeous Plants 4: 645, 663.
  • Govaerts, R. et al. 2020. Utania in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew
  • Hassler, M. 2017. Utania. World Plants: Synonymic Checklists of the Vascular Plants of the World. In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2017. Species 2000 & ITIS Catalogue of Life