Cleisostoma arietinum

Cleisostoma longifolium

Cleisostoma arietinum                                                                                                                                                    photo C. Solimbergo
taxonomy         described by (Reichenbach f.) Garay, Leslie Andrew
  published in      Botanical Museum leaflets, Harvard University  23 : 169    1972
  family Orchidaceae
  subfamily Epidendroideae
  tribe Vandeae
  subtribe Aeridinae
  genus Cleisostoma  Blume 1825
  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 forest in Thailand (Doui Sutep, Chieng Mai, Phu Phan), Malaysia 
  altitude 305 - 457 m  (1006 - 1508 ft)       
  habitat climate informations from Chieng Mai (Roi Et, 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 300 m / 990 ft) :
    Cleisostoma arietinum a gr uk
  photoperiod in Chieng Mai 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 25 - 35 cm (10" - 14"), axillary
  nr flowers 80 - 150
  size single flower  0.8 L 1  (0.32" L 0.4") - inflorescence  6  L 1 cm  (6.4" L 0.4")
  duration inflorescence ≈ 150 days
  time to bloom from birth, ≈ 60 - 70 days  
CITES appendix II

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