Goniothalamus calvicarpus

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Goniothalamus calvicarpus
Goniothalamus calvicarpus.jpg
Composite color images of Goniothalamus calvicarpus leaf, branch and fruit.[1]
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Magnoliids
Order: Magnoliales
Family: Annonaceae
Genus: Goniothalamus
Species:
G. calvicarpus
Binomial name
Goniothalamus calvicarpus

Goniothalamus calvicarpus is a species of plant in the family Annonaceae. It is native to China, Laos[1] and Thailand.[2] William Grant Craib, the British botanist who first formally described the species, named it after its hairless fruit (calvus and -carpus in Latin).[3][4]

Description[]

It is a tree reaching 3-4 meters in height. Its young branches have fine rust colored hairs, while mature branches are smooth, dark brown, with a ribbed surface and prominent lenticels. Its petioles are 5 millimeters long with a channel on their upper surface. Its moderately leathery, oblong leaves are 19-29 by 4-6 centimeters. The leaves have 15-17 pairs of secondary veins emanating from the midrib. The margins of the leaves recurve. Its solitary flowers are in axillary positions on 8-19 millimeter long pedicels. Its 3 oval sepals 11–18.5 by 8–15.5 millimeters and have hairs on both surfaces. Its flowers have 6 petals in two rows of 3. The outer petals are 21-46 by 4.5-18 millimeters with fine hairs on both surfaces. The inner petals are coherent at their base. Its flowers have 75-120 stamen that are 2 millimeters long. Its gynoecium have 15-35 carpels that are hairless and 1 millimeter high with stigma that are 2 millimeters long. Its seeds have slightly wrinkled surfaces.[4][5]

Reproductive biology[]

The pollen of G. calvicarpus is shed as permanent tetrads.[5]

Habitat and distribution[]

It has been observed growing near streams with evergreen and deciduous trees at an elevation of 250-1500 meters.[4][5][1]

References[]

  1. ^ a b c Yang, Bin; Zhu, Ren-Bin; Ding, Hongbo; Bouamanivong, Somsanith; Tan, Yun-Hong (2020). "A new species and two new records of Goniothalamus (Annonaceae) from Lao PDR". PhytoKeys (138): 17–25. doi:10.3897/phytokeys.138.38995. ISSN 1314-2003. PMC 6968978. PMID 31988602.
  2. ^ "Goniothalamus calvicarpus Craib". Plants of the World Online. The Trustees of the Royal Botanic Gardens, Kew. n.d. Retrieved January 17, 2019.
  3. ^ Stearn, William (2004). Botanical Latin. Portland, Ore. Newton Abbot: Timber Press David & Charles. ISBN 9780881926279.
  4. ^ a b c Craib, W.G. (1922). "Contributions to the Flora of Siam. Additamentum XIII.". Bulletin of Miscellaneous Information (in Latin and English). pp. 225–241.
  5. ^ a b c 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.
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