Cananga brandisiana

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Cananga brandisiana
Unona brandisana.tif
Botanical illustration of Cananga brandisiana (labeled using its basionym Unona brandisiana).
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Magnoliids
Order: Magnoliales
Family: Annonaceae
Genus: Cananga
Species:
C. brandisiana
Binomial name
Cananga brandisiana
Synonyms

Cananga latifoliaFinet & Gagnep.
Canangium brandisanum(Pierre) Saff.
Canangium latifoliumPierre ex Ridl.
Unona brandisianaPierre
Unona latifoliaHook.f. & Thomson

Contents

Cananga brandisiana is a species of plant in the family Annonaceae. It is native to Cambodia, Laos, Malaya, Myanmar, Thailand, and Vietnam. [1] Jean Baptiste Louis Pierre, the French botanist who first formally described the species, using the basionym Unona brandisiana, named it in honor of Sir Dietrich Brandis, the German botanist for whom Pierre worked in the Indian Forest Service (then called the Imperial Forestry Service) in Calcutta. [2] [3]

Description

It is a tree reaching 25 meters in height. Its trunk has grey bark. Its long branches have a round cross-section and are covered in woolly hairs when young, but are hairless when mature. Its petioles are 12-20 mm long and covered in woolly hairs. Its hairless, elliptical leaves are 8-16 by 7-11 cm. One to eight fragrant flowers are on peduncles that are 10-20 mm long. Subtending the peduncles are oval bracts that are 1.5-2.0 by 2.0 cm and covered in woolly hairs. About midway along the length of the peduncles is a bracteole that is 8 by 2-5 mm and covered in woolly hairs. Its sepals are 5 mm long and come to a shallow point. Its oblong, fleshy petals are 4-7 cm long and 2 cm wide at their widest point. The petals come to a point at their tip and are covered in woolly hairs. The flowers have about 240 stamens. The receptacles of the flowers are hairy. Its flowers have 24 carpels that are covered in fine downy hairs. Its styles are hairless. Its ovaries have variable numbers of ovules. Its cylindrical fruit are on pedicels that are 5 mm long. The contour of the fruit is constricted around its seeds. The fruit contain two or three flattened, brown, shiny seeds that are 6 by 12 mm. [4]

Reproductive biology

The pollen of C. brandisiana is shed as permanent tetrads. [5]

Habitat and distribution

Pierre described it in 1881 as growing commonly in the forest areas in China and Cambodia. [2]

Uses

In Cambodia, it is called by the common name chkè sraèng, and is used in traditional medicine to treat fever. [6] Bioactive molecules isolated from its bark, including acetogenins have been reported to have cytotoxic properties in tests with cancer cell lines. [7] Juvenile hormones, which are known to regulate insect development, have also been extracted from its bark. [8] Pierre noted that its soft, white wood can be used in woodworking to create vases, boxes, and tool handles. [2]

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References

  1. ↑ "Cananga brandisiana (Pierre) Saff". Plants of the World Online. The Trustees of the Royal Botanic Gardens, Kew. n.d. Retrieved September 5, 2019.
  2. 1 2 3 Pierre, L. (1881). Flore Forestière de la Cochin Chine [Forest Flora of Cochin China] (in French and Latin). Paris: Octave Doin.
  3. ↑ Doling, Tim (n.d.). "Jean-Baptiste Louis-Pierre: The Father of Saigon's Green Spaces". Bliss Saigon. Bliss. Retrieved August 26, 2019.
  4. ↑ Finet, A.; Gagnepain, F. (1906). "Contribution à L'étude de la Flore de L'Asie Orientale". Bulletin de la Société botanique de France (in French). 4: 84.
  5. ↑ Walker, James W. (1971). "Pollen Morphology, Phytogeography, and Phylogeny of the Annonaceae". Contributions from the Gray Herbarium of Harvard University. 202 (202): 1–130. JSTOR   41764703.
  6. ↑ Hout, Sotheara; Chea, Aun; Bun, Sok-Siya; Elias, Riad; Gasquet, Monique; Timon-David, Pierre; Balansard, Guy; Azas, Nadine (2006). "Screening of selected indigenous plants of Cambodia for antiplasmodial activity". Journal of Ethnopharmacology. 107 (1): 12–18. doi:10.1016/j.jep.2006.01.028. ISSN   0378-8741. PMID   16546336.
  7. ↑ Wongsa, Nikhom; Kanokmedhakul, Somdej; Kanokmedhakul, Kwanjai (2011). "Cananginones A–I, linear acetogenins from the stem bark of Cananga latifolia". Phytochemistry. 72 (14–15): 1859–1864. doi:10.1016/j.phytochem.2011.05.013. ISSN   0031-9422. PMID   21714976.
  8. ↑ Phatchana, Ratchanee; Thongsri, Yordhathai; Somwaeng, Ratree; Piboonpol, Kewalin; Yenjai, Chavi (2015). "Canangalias A and B from the stem bark of Cananga latifolia". Phytochemistry Letters. 13: 147–151. doi:10.1016/j.phytol.2015.05.025. ISSN   1874-3900.
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