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Dichromanthus

Scientific Name: Dichromanthus

Family: Orchidaceae

Category: Monocot

Growth:

Duration:

Other Names:

       

Dichromanthus: A Genus of Terrestrial Orchids

Dichromanthus is a genus of flowering plants belonging to the orchid family, Orchidaceae. These orchids are terrestrial, meaning they grow on the ground.

Taxonomy and Nomenclature

  • Genus: Dichromanthus
  • Family: Orchidaceae

The genus Dichromanthus was at one point segregated from the genus Stenorrhynchos. Taxonomists have also assessed concepts between Dichromanthus and Schiedeella. The accepted name for the Scarlet Ladies' Tresses is Dichromanthus cinnabarinus (Lex.) Garay.

  • Synonyms for Dichromanthus cinnabarinus:
    • Neottia cinnabarina La Llave &amp Lexarza
    • Cutsis cinnabarina (Lex.) C.Nelson
  • Dichromanthus cinnabarinus f. aureus P.M.Br. is listed as a synonym.

Distribution and Habitat

  • Dichromanthus species are found from Texas in the United States, through Mexico, and south to Guatemala, Honduras, and El Salvador.
  • Specific locations include:
    • Mexico (Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest)
    • Texas (Chisos Mountains, open slopes with shallow soil)
    • Oaxaca (Mexico)
    • Arizona

Species

Currently, the genus includes at least three accepted species:

  • Dichromanthus aurantiacus
  • Dichromanthus cinnabarinus
  • Dichromanthus michuacanus
  • Dichromanthus yucundaa is endemic to Oaxaca, Mexico.

Morphological Characteristics

  • The flower size of Dichromanthus can range from 0.4 to 1 cm.

Common Names

  • Dichromanthus cinnabarinus: Scarlet Ladies' Tresses, Cutzis cinabarino (Spanish)
  • Dichromanthus aurantiacus: Orange Colored Dichromanthus
  • Dichromanthus michuacanus: Michuacan lady orchid

Ecological Information

  • An interim report is presented on the population dynamics of Dichromanthus michuacanus and Hexalectris revoluta in southeastern Arizona.

Further Information

  • Taxonomic Serial No.: 512260 for Dichromanthus cinnabarinus
  • The Plant List includes information on 4 scientific plant names of species rank for the genus Dichromanthus.