Christensonia vietnamica

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Christensonia  vietnamica                                        photo  Z
   
taxonomy        described by Haager, Jiri
  published in      Orchid Digest  57 ( 1 ) : 40    1993
     
  family Orchidaceae
  subfamily

Epidenroideae 

  tribe Vandeae
  subtribe Aeridiinae 
  genus Christensonia  Haager 1993
     
  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 deciduous or semideciduos forests in Viet Nam (Ninh, Thuan)
  altitude  600 - 700 m (1980 - 2310 ft)                   
  habitat climate informations from Ninh Thuan (South Central Coast, Viet Nam)
    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 650 m / 2145 ft) :
    Christensonia vietnamica a gr uk
  photoperiod in Ninh Thuan this orchid bloom with a photoperiod, that varies during the year, from 12 h 47 m' to 11 h 13 m'
  life form epiphyte
  brightness   partial shade
     
inflorescence    length 5 cm  (2"), axillary
  nr flowers 2 - 3
  size single flower  1.8 L 2.5 cm  (0.72" L 1") - depth 3.5 cm  (1.4")
  duration inflorescence14 days
  time to bloom from birth, ≈ 30 days 
     
CITES appendix II

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