Dendrobium griffithianum

   Dendr. griffitianum 1

Dendrobium  griffithianum                                                                                                                                                                             photo Z
taxonomy         described by Lindley, John
  published in      Edwards's Botanical Register  21 : sub. t. 1756    1836
  family Orchidaceae
  subfamily Epidendroideae
  tribe Malaxideae
  subtribe Dendrobiinae
  genus Dendrobium Swartz 1799
  chromosomes     2n = 40 
  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 forests, on high branches of the trees, in Central Burma ( Limjaik), Thailand (Hue Wao, Nan)
  altitude ≈ 500  m (1650 ft)
  habitat climate informations from Nan (Nan, Thailand)
    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 500 m / 1650 ft) :
    Dendrobium griffitianum a gr uk
  photoperiod in Nan this orchid bloom with a photoperiod, that varies during the year, from 13 h 14 m' to 10 h 46 m'
  life form epiphyte
  brightness      partial shade
inflorescence     length 16 cm  (6.4"), from the upper nodes 
  nr flowers 14 - 18
  size single flower  2,5 L 5 cm  (1" L 2") - inflorescence L cm
  duration inflorescence12 days
  time to bloom from birth, ≈ 30 days    
CITES appendix II

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