Dendrobium cumulatum

x56009p Dendrobium cumulatum 

Dendrobium cumulatum                                                                                                                                                  photo C. Solimbergo

taxonomy described by Lindley, John
  published in        The Gardeners' Chronicle & Agricultural Gazette  756    1855
  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 swamp or peat forests in India (Assam, Sikkim, Meghalaya, Khasi Hills, Kalimpong), Nepal, Bhutan, 
    Burma, Laos (Vientiane), Thailand, Cambodia, Viet Nam (Lam Dong),  Indonesia (Borneo, Mt. Kinabalu,
    Sulawesi, Celebes), Papua
  altitude  0 - 600 m (0 - 1980 ft)
  habitat climate informations from Laikit (Laikit II (Dimembe), North Sulawesi, Indonesia)
    Köppen climate classification : Af, humid tropical climate of the rainforest
    (no winter season, more abundant rainfall)
    the weather station data (temperatures are calculated for an altitude of 300 m / 990 ft) :
    Dendrobium cumulatum a gr uk
  photoperiod in Laikit this orchid bloom with a photoperiod, that varies during the year, from 12 h 05 m' to 11 h 55 m'
  life form epiphyte
  brightness      sunny
inflorescence     length 1 cm (0.4"), from the upper nodes
  nr flowers 2 - 3, fragrants
  size single flower  2 L 3.5 cm  (0.8" L 1.4") - inflorescence  8 L 6 cm  (3.2" L 2.4")
  duration inflorescence ≈ 12 - 15 days
  time from birth to bloom, ≈ 30 days   
CITES appendix II

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