• Species: Vatica bantamensis (Hassk.) Benth. & Hook.ex Miq.
  • Synonim: Anisoptera bantamensis Hassk.
  • Family: Dipterocarpaceae (Meranti-merantian)
  • Verncular name: Resak Banten, Kokoleceran
  • Conservation Status: Critically Endangered (CR B1ab(iii,v)+2ab(iii,v); C2a(ii) ver 3.1 IUCN, 2018)
  • Distribution: Endemic in Ujung Kulon National Park, Banten Province

Resak Banten only grows naturally in Ujung Kulon National Park. Because of its endemicity, Resak banten is used as the flora identity of Banten province, or also known as ‘Kokoleceran’. The tree is medium sized, reaching 30 m in height. The leaves are rather thick and shiny, ovate or oblong (4.5-) 7.5-18 cm x (1.8-) 3.5-7.5 cm, secondary venation ranged 9 to 11 pairs. Inflorescence in panicles, appears in axillary or terminal of the branch. The fruit with Five-winged, of which consist of two long wings (9 x 2.5 cm) and three short wings (0.25 x 0.09 cm). The nuts is rather rounded with a diameter of 10 mm. Its natural is lowland forest on hillsides or mountains. The wood is used as building construction material and also for ship or boat building.

The main threats to the species population is the pressure of invasive species, ‘Langkap’ (Arenga obtusifolia), which covers the more growing-space of resak banten and also other trees. Logging is also a threat though with low intensity.

The population of Resak Banten has been very small, research conducted by the Bogor Botanical Gardens team – LIPI in 2017, of 280 individuals found, only 58 of them were mature trees. Mature individuals are also estimated to be less than 250 individuals. On this basis, the IUCN categorizes this species on Critically Endangered (CR) category, besides also on the basis of declining habitat quality as well as threatened by the uncontrolled timber harvesting.

Reference:

Robiansyah, I. 2018. Vatica bantamensis (errata version published in 2018). The IUCN Red List of Threatened Species 2018: e.T31319A135558901. http://dx.doi.org/10.2305/IUCN.UK.2018-1.RLTS.T31319A125626167.en. Downloaded on 01 March 2019.