Goniothalamus elegans

Goniothalamus elegans is a species of plant in the family Annonaceae. It is native to Thailand and Vietnam.[1] Suzanne Jovet-Ast, the French botanist who first formally described the species, named it after its elegant (elegans in Latin) thin, flexible leaves.[2][3]

Goniothalamus elegans
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Magnoliids
Order: Magnoliales
Family: Annonaceae
Genus: Goniothalamus
Species:
G. elegans
Binomial name
Goniothalamus elegans

Description

It is a tree reaching 2 meters in height. Its branches are black or gray. Its petioles are 5 millimeters long with a channel, and either hairless or with fine yellows hairs. Its long, narrow leaves are 7-10.5 by 1.2-1.8 centimeters and come to a tapering point. The leaves are have sparse fine hairs on their upper surface and are smooth on their lower surface. The leaves have 10-12 pairs of secondary veins emanating from the midrib. Its solitary flowers are in axillary positions on 3-4 millimeter long pedicels. Its 3 oval sepals have blunt tips and their outer surfaces are covered in short red hairs while their inner surfaces are hairless. Its flowers have 6 petals in two rows of 3. Its outer, oblong petals are 12 millimeters long. Its inner petals are narrower and shorter and united at their top. The flowers have numerous wedge-shaped stamen about 1.5 millimeters long. Its gynoecium have multiple hairless carpels with oval ovaries and slightly narrower styles topped by wider stigma that together are longer than the ovaries.[3]

Reproductive biology

The pollen of G. elegans is shed as permanent tetrads.[4]

Uses

Bioactive molecules extracted from its bark have been reported to be cytotoxic in tests with cultured human cancer cells, and to have antiplasmodial activity.[5]

Distribution and Habitat

It has been observed growing in deciduous forests at elevations of 300 to 600 meters.[4]

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References
  1. "Goniothalamus elegans Ast". Plants of the World Online. The Trustees of the Royal Botanic Gardens, Kew. n.d. Retrieved January 18, 2019.
  2. Stearn, William (2004). Botanical Latin. Portland, Ore. Newton Abbot: Timber Press David & Charles. ISBN 9780881926279.
  3. Ast, Mlle S. (1938). "Identité de deux espèces d'Anonacées: Oxymitra Gabriaciana Baillon et Goniothalamus saïgonensis Pierre mss ex Finet et Gagnepain. Espèces nouvelles d'Indo-Chine" [Identity of two Anonaceae species: Oxymitra Gabriaciana Baillon and Goniothalamus saïgonensis Pierre mss ex Finet and Gagnepain. New species from Indo-China]. Bulletin de la Société Botanique de France (in French and Latin). 85 (1): 50–53. doi:10.1080/00378941.1938.10834056. ISSN 0037-8941.
  4. Saunders, Richard M. K.; Chalermglin, Piya (2008). "A synopsis of Goniothalamus species (Annonaceae) in Thailand, with descriptions of three new species". Botanical Journal of the Linnean Society. 156 (3): 355–384. doi:10.1111/j.1095-8339.2007.00762.x. ISSN 0024-4074.
  5. Suchaichit, Nattawut; Kanokmedhakul, Kwanjai; Panthama, Natcha; Poopasit, Kitisak; Moosophon, Panawan; Kanokmedhakul, Somdej (2015). "A 2H-tetrahydropyran derivative and bioactive constituents from the bark of Goniothalamus elegants Ast". Fitoterapia. 103: 206–212. doi:10.1016/j.fitote.2015.04.005. ISSN 0367-326X.
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