Orophea thomsonii

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Orophea thomsonii
Orophea thomsonii 192847267.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Magnoliids
Order: Magnoliales
Family: Annonaceae
Genus: Orophea
Species:
O. thomsoni
Binomial name
Orophea thomsoni
Beddome

Orophea thomsonii or Thomson's Turret Flower is a species of shrub or small tree in the Annonaceae family. It is native to Kerala and Tamil Nadu in India and endemic to the Western Ghats mountain range. [1]

Contents

Description

Mature and young leaves Orophea thomsonii in Anamalais IMG 20210130 100819.jpg
Mature and young leaves
Branchlet showing dorsal surface of leaves Orophea thomsonii 66228832.jpg
Branchlet showing dorsal surface of leaves

Woody evergreen plants, occurring as large shrubs or small trees up to 10 m tall. The tree has slender branches with the young branchlets being tomentose and holding waxy leaves to forming a canopy in the understorey of evergreen forests. Leaves are simple, alternate, and distichous, with short petioles (0.2-0.5 cm), cuneate or acute base, small lamina (5-7 x 2.5-3.5 cm), and about 6 pairs of secondary nerves. The tertiary nerves are reticulate. The leaves are hairless except for the midrib beneath. The leaf shape is ovate or ovate-elliptic with a long acuminate, rounded tip. The flowers are creamy white, found solitary or in cymes of 2–3 at the axils of leaves. The outer petals are strigose (with stiff hairs), inner pubescent inside. The peduncles are strigose and the pedicels are very short, slender, pubescent. The flower has oblong and horizontal nectaries, 10-12 stamens and 5-6 carpels. The fruit is a short-stalked, pea-sized, round berry about 8 mm in diameter, found in clusters, each with 1-2 round, brown seeds that appear wrinkled and pitted. [2] [3]

Taxonomy

There are no synonyms of this species.

Sapling in understorey of tropical wet evergreen forests Orophea thomsonii 66229052.jpg
Sapling in understorey of tropical wet evergreen forests

Distribution and habitat

The species is found along the Western Ghats in Kerala and Tamil Nadu, from Palakkad and Nilgiris District and further south in the Anamalai and Agasthyamalai Hills. It occurs in mid-elevation tropical wet evergreen forests between 250 and 1250 m above mean sea level.

Uses

The plant is known to have medicinal uses among the indigenous people in Kalakad-Mundanthurai Tiger Reserve. [4]

Related Research Articles

The term Malabar rainforests refers to one or more distinct ecoregions recognized by biogeographers:

  1. the Malabar Coast moist forests formerly occupied the coastal zone to the 250 metre elevation
  2. the South Western Ghats moist deciduous forests grow at intermediate elevations
  3. the South Western Ghats montane rain forests cover the areas above 1000 metres elevation
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<i>Cullenia exarillata</i> Species of flowering plant

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References

  1. 1 2 World Conservation Monitoring Centre (1998). "Orophea thomsoni". IUCN Red List of Threatened Species . 1998: e.T31159A9610217. doi: 10.2305/IUCN.UK.1998.RLTS.T31159A9610217.en . Retrieved 17 November 2021.
  2. "Orophea thomsoni - ANNONACEAE". www.biotik.org. Retrieved 19 October 2022.
  3. "Orophea thomsonii Bedd. | Species". India Biodiversity Portal. Retrieved 19 October 2022.
  4. Ayyanar, Muniappan; Ignacimuthu, Savarimuthu; Houghton, Peter J. (1 June 2014). "Threat Status of Medicinal Plants Used by the Tribal People in Kalakad Mundanthurai Tiger Reserve, Southern Western Ghats, India". Proceedings of the National Academy of Sciences, India Section B: Biological Sciences. 84 (2): 419–429. doi:10.1007/s40011-013-0224-4. ISSN   2250-1746.