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Cyrtostylis reniformis.jpg
Cyrtostylis reniformis
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Orchidoideae
Tribe: Diurideae
Subtribe: Acianthinae
Genus: Cyrtostylis
Cyrtostylis distribution map.png

Cyrtostylis is a genus of orchids. It contains 5 currently recognized species, native to Australia and New Zealand.[1]

The genus was first described by Robert Brown in his Prodromus Florae Novae Hollandiae (1810). The type species for the genus is Cyrtostylis reniformis. It shares many morphological characteristics of another genus, Acianthus, and some author have merged the two genera into one.

  1. Cyrtostylis oblonga Hook.f. - New Zealand
  2. Cyrtostylis reniformis R.Br. - All 6 states of Australia
  3. Cyrtostylis robusta D.L.Jones & M.A.Clem - South Australia, Western Australia, Tasmania, Victoria
  4. Cyrtostylis rotundifolia Hook.f. - New Zealand
  5. Cyrtostylis tenuissima (Nicholls & Goadby) D.L.Jones & M.A.Clem. - Western Australia


  • "Orchidaceae Cyrtostylis R.Br.". Plant Name Details. IPNI. 2004-01-20. Retrieved 2007-12-01. 
  • P. J. Kores; M. Molvray; S. P. Darwin (April–June 1993). "Morphometric Variation in Three Species of Cyrtostylis (Orchidaceae)". Systematic Botany, Vol. 18, No. 2. American Society of Plant Taxonomists. Retrieved 2007-12-01. (Abstract) Character choice in the delimitation of Cyrtostylis oblonga, C. reniformis, and C. robusta.., 
  • "ACIANTHUS; Mosquito Orchids". CSIRO. Retrieved 2007-12-01. (Kores 1995) ... very broad generic approach, for example including Cyrtostylis within the generic boundaries of Acianthus despite an earlier study to the contrary (Jones and Clements 1987). 
  • "Cyrtostylis". FloraBase. Western Australian Government Department of Parks and Wildlife. 
  • Brown, R. (1810) Prodromus Florae Novae Hollandiae 322.
  • Pridgeon, A.M., Cribb, P.J., Chase, M.C. & Rasmussen, F.N. (2001) Orchidoideae (Part 1). Genera Orchidacearum 2: 75 ff. Oxford University Press.

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