Paphiopedilum ooii

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Paphiopedilum ooii
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Cypripedioideae
Genus: Paphiopedilum
Species:
P. ooii
Binomial name
Paphiopedilum ooii
Koop. (1999)

Paphiopedilum ooii is a species of slipper orchid native to Mount Kinabalu on Borneo. It is named after Michael Ooi, a slipper orchid enthusiast from Malaysia. [2]

Contents

Description

P. ooii is known as an obligate ultramafic species. [3] Its flowers are 3 centimetres (1.2 in) wide, large sized, with warm to cool growing, and grows on terrestrial or lithophyte on rocks with 6–8 leaves that are characterised as suberect, oblong-lanceolate, rounded, and dark green in color. The species blooms in 4 to 12 flowered inflorescence in the winter characterized as terminal, erect, and arcuate, with length spanning to 1.5 metres (4.9 ft). It is similar morphologically to P. kolopakingii , but can be distinguished by its shorter and ovate dorsal sepal, spirally twisted petals, a shorter lip and a white staminode with a less hairy margin. [2]

Distribution and habitat

Paphiopedilum ooii is found in a single location on Mount Kinabalu on the island of Borneo, in Sabah state of Malaysia. It is often a lithophyte growing on rocks, cracks and crevices in cliffs near rivers and slopes of eroded serpentine, within altitudes of 600–1,100 metres (2,000–3,600 ft) and 1,500–1,600 metres (4,900–5,200 ft) [3] above sea level. [1]

Conservation

The known population is very small, existing only in a single location in Kinabalu Park, [3] estimated at 40 individuals. It is threatened with habitat loss from human activities and from commercial collecting. Its population is declining, and its conservation status is assessed as Critically Endangered. [1] By 2015, the single population was recorded to be disappeared due to illegal poaching. [3]

References

  1. 1 2 3 Rankou, H. (2015). "Paphiopedilum ooii". IUCN Red List of Threatened Species . 2015: e.T43321643A43327929. doi: 10.2305/IUCN.UK.2015-2.RLTS.T43321643A43327929.en . Retrieved 5 April 2023.
  2. 1 2 "Paphiopedilum ooii Koop. 1999 Sugenus Polyantha Section Mastigopetalum". orchidspecies.com.
  3. 1 2 3 4 van der Ent, Antony; van Vugt, Rogier; Wellinga, Simon (2015). "Ecology of Paphiopedilum rothschildianum at the type locality in Kinabalu Park (Sabah, Malaysia)". Biodiversity and Conservation. 24: 1641–1656.