Xylopia nitida explained

Xylopia nitida is a species of plant in the Annonaceae family. It is native toBrazil, Colombia, Ecuador French Guiana, Guyana, Suriname and Venezuela.[1] Michel Félix Dunal, the botanist who first formally described the species, named it after the shiny (Latin: nitidus in Latin) upper surface of its leaves.[2] [3]

Description

It is a tree reaching 20 meters in height. The young branches are covered in dense pale brown hairs, but as they mature they become hairless. Its narrow, elliptical, papery leaves are 8.5-13 by 3-4.5 centimeters. The leaves have pointed bases and tapering tips, with the tapering portion 5-10 millimeters long. The leaves are shiny and hairless on their upper surfaces, and have dense, slivery-white to brown hairs that lay flat on their lower surfaces. Its petioles are 2-6 millimeters long. Its Inflorescences occur in the axils of leaves or fallen leaves. Each inflorescence has up to 8 flowers. Each flower is on a pedicel that is 1-13 by 1-3 millimeters. Its flowers have 3 oval to triangular sepals that are 1-2 millimeters long. The lower part of the sepals are fused at their margins to form a cup-shaped calyx that is 4-5 millimeters long. Its 6 petals are arranged in two rows of 3. The orange outer petals are 18-20 by 3-5 millimeter. The orange inner petals are 15 by 1-2 millimeters. Its flowers have 170-270 stamen that are 1-1.5 millimeters long. The stamen are attached to a receptacle that forms a cone that is 1.8-2.2 by 1.2-1.5 millimeters. Its flowers have 20-30 carpels. Its stigma are capped with soft hairs. The hairless, green to red, narrow, cylindrical fruit occur in clusters of 10-27. The fruit are 10-60 millimeters long with longitudinal grooves. Each fruit has 4-6 egg-shaped seeds that are 5-6.5 millimeters long.[4] [5]

Reproductive biology

The pollen of Xylopia nitida is shed as permanent tetrads.[6]

Distribution and habitat

It has been observed growing in subtropical forests, tropical moist lowlands, and savanna.[5]

Uses

Its leaf oils contain terpinenes, cymene, and limonene.[7]

Notes and References

  1. Web site: Xylopia nitida Dunal . . n.d. . Plants of the World Online . The Trustees of the Royal Botanic Gardens, Kew . June 21, 2022.
  2. Book: Stearn, William . Botanical Latin . Timber Press David & Charles . Portland, Ore. Newton Abbot . 2004 . 978-0-88192-627-9 .
  3. Book: Dunal, Michel-Felix . 1817 . Monographie de la Famille des Anonacées . Monograph of the Anonaceae family . fr, la . Paris . Treuttel et Würtz . 122. 10.5962/t.173118 .
  4. Maas . Paul J. . Mass . Hiltje . Miralha . M.S. . 2007 . Flora da Reserva Ducke, Amazonas, Brasil: Annonaceae . Flora of the Ducke Reserve, Amazonas, Brazil: Annonaceae . pt, en . Rodriguésia: Revista do Jardim Botânico do Rio de Janeiro . 58 . 3 . 617–663.
  5. Pontes-Pires . Aline Fernandes . Barbosa . Maria Regina De V. . Johnson . David M. . 2021. Xylopia maasiana (Annonaceae), a New Species from the Brazilian Amazon, and Taxonomic Notes on Xylopia nitida Dunal . Systematic Botany . 46 . 2 . 273–279 . 10.1600/036364421X16231782047424. 237217245 .
  6. Walker . James W. . 1971 . Pollen Morphology, Phytogeography, and Phylogeny of the Annonaceae . 41764703 . Contributions from the Gray Herbarium of Harvard University . 202 . 202 . 1–130. 10.5962/p.272704 . 249081277 . free .
  7. Maia . José Guilherme S. . Andrade . Eloisa Helena A. . Da Silva . Ana Carla M. . Oliveira . Jorge . Carreira . Léa Maria M. . Araújo . Josiele S. . 2005. Leaf volatile oils from four Brazilian Xylopia species . Flavour and Fragrance Journal . 20 . 5 . 474–477 . 10.1002/ffj.1499.