title: Anisoptera (plant)
text: # Anisoptera (plant)
  
  Anisoptera is a genus of plants in the family Dipterocarpaceae. It contains ten species distributed from Chittagong in southeast of Bangladesh to New $Guinea.^{:72}$
  
  Eight out of the ten species are currently listed on the IUCN Red List. Of these, four species are listed as critically endangered and the other four as endangered. The main threat is habitat loss.
  
  ## Taxonomy
  
  The name Anisoptera is derived from Greek ἄνισος ánisos “unequal” and πτερόν pterón “wing” describing the trees' unequal fruit calyx $lobes.^{:71}$
  
  ## Characteristics
  
  Its bark is flaky and has vertical $cracks.^{:69}$ Its wood is pale and yellowish, it makes light hardwood $timber.^{:71–72}$
  
  ## Species
  
  Ten species are accepted:
  
  * Anisoptera aurea Foxw. – Philippines
  * Anisoptera costata Korth. – Indochina, Peninsular Malaysia, Sumatra, Java, Borneo, and Philippines
  * Anisoptera curtisii Dyer ex King – Myanmar, Thailand, Peninsular Malaysia, and Sumatra
  * Anisoptera grossivenia V.Sloot. – Borneo
  * Anisoptera laevis Ridl. – Peninsular Thailand, Peninsular Malaysia, Sumatra, and Borneo
  * Anisoptera marginata Korth. – Peninsular Malaysia, Sumatra, and Borneo
  * Anisoptera megistocarpa Slooten – Peninsular Thailand, Peninsular Malaysia, and Sumatra
  * Anisoptera reticulata P.S.Ashton – western and northwestern Borneo
  * Anisoptera scaphula (Roxb.) Kurz – Assam, Bangladesh, Myanmar, Thailand, Peninsular Malaysia, and Vietnam
  * Anisoptera thurifera (Blanco) Blume – Philippines, Sulawesi, Maluku, and New Guinea
  
  NB: Anisoptera parvifolia Warb. is a synonym of Hopea parvifolia (Warb.) Slooten
  
  