Dendrobium secundum

Dendrobium secundum

Dendrobium secundum                                                                                                                                                     photo C. Solimbergo
taxonomy         described by (Blume)  Lindley, John
  published in     A Numerical List of Dried Specimen n. 1996    1828
  family Orchidaceae
  subfamily Epidendroideae
  tribe Malaxideae
  subtribe Dendrobiinae
  genus Dendrobium Swartz 1799
  chromosomes  2n = 40  

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 semi-deciduous forests  in Burma (Tenasserim, Moulmein), Laos,

    Thailand (Kiensa, Surat, Doi Sutep, Kao Talu, Ranawng, Tapan Lek, Satul, Ban Udai, Pulo Besi),
    Cambodia, Viet Nam (Dak Lak, Ninh Thuan), Malaysia (Borneo, Sabah, Sarawak, Marudi, Kalimantan,
    Malaya, Kedak, Sigimting, Negri Sembilan, Kuching, Batu Kawa, Bario, Pa Umor), Brunei,
    Indonesia (Java, Sumatra, Celebes, Sulawesi), Papua, The Philippines (Agusan, Bataan, Davao, Lanao,
    Rizal, Surigao)
  altitude 40 - 1100 m  (0 - 230 m Philippines)   (132 - 3630 ft (0 - 760 ft Philippines)

climate informations from Singosari Satu (East Java, Indonesia)

    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 secundum a gr uk
  photoperiod in Singosari Satu this orchid bloom with a photoperiod, that varies during the year, from 12 h 30 m' to 11 h 30 m'
  life form epiphyte
  brightness    partial shade
inflorescence     length 7 - 10 cm  (2.8" - 4"), from the upper nodes
  nr flowers 46 - 52, fragrants
  size single flower  1 L 1.5 cm  (0.4" L 0.6") - inflorescence  10 L 4 cm  (4" L 1.6")
  duration inflorescence30 days
  time to bloom from birth, ≈ 30 days 
CITES appendix II

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