Caularthron bicornutum

Caularthron bicornutum

Caularthron bicornutum                                                                                                                                                 photo C. Solimbergo
taxonomy         described by Rafinesque, Costantine Samuel
  published in      Flora Tulluriana  2 : 41    jan - mar  1837
  family Orchidaceae
  subfamily Epidendroideae
  tribe Epidendreae
  subtribe Laellinae
  genus Caularthon  Rafinesque 1837
  metabolism CAM pathway, stomata of the leaves are open at night.
    (K.Silvera, L.S. Santiago, J.C. Cushman, K. Winter - International Symposium on Plant Biology, August 2013)
    it is useful give the soluble mineal nutriens, on the roots.
native of origins

dry forests in the Caribbean, Suriname, Guyana (Essequibo Islands, Repunumi, Akaio Falls, Cuyuni River), 


Trinidad & Tobago (Broadway), ,Venezuela (Amazonas, Bolivar, Monagas, Sucre), Colombia, 


Brazil (Amazonas, Rondônia, Roraima)

  altitude 0 - 140 m (0 - 462 ft)         
  habitat climate informations from Maturin (Monagas, Venezuela)
    Köppen climate classification : Aw, tropical savanna climate (with a dry season and a rainy season)
    the weather station data (temperatures are calculated for an altitude of 70 m / 231 ft) :
    Caulartron bicornutum a gr uk
  photoperiod in Maturin this orchid bloom with a photoperiod, that varies during the year, from 12 h 38 m' to 11 h 22 m'
  life form epiphyte or litophyte
  brigthness    sunny to full sun
inflorescence     length 16 - 20 cm  (6" - 8"), apical
  nr flowers 4 - 6, fragrant
  size single flower  4 L 6 cm  (1.6" L 2.4") - inflorescence  7 L 6 cm  (2.8" L 2.4")
  duration inflorescence30 - 35 days
  time to bloom from birth, ≈ 60 - 90 days
CITES appendix II

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