Paphiopedilum sukhakulii

Paphiopedilum sukhakulii 

Paphiopedilum sukhakulii                                                                                                                                                photo C. Solimbergo                                                              

taxonomy described by Schoser, Gustav  &  Senghas, Karlheinz
  published in      Die Orchideen  16 : 110 . 224    1965
  family Orchidaceae
  subfamily Cypripedioideae
  tribe --
  subtribe --
  genus Paphiopedilum  Pfitzer 1886
  section Barbata  Kränzlin 1897
  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 Thailand (Mt. Phu Luang, Loei)
  altitute 240 - 1000 m  (790 - 3300 ft)
  habitat climate informations from Loei (Loei, 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 600 m / 1980 ft) :
    Paphiopedilum sukhakulii b gr uk
  photoperiod  in Loei this orchid blooms with a photoperiod, which varies during the year, from 13 h 09 m' to 10 h 51 m'
  life form geophyte in debris of leaves, on sandy soils along the riverswater,
    bloom induction, with a rest in december or january (Lance A. Birk)
  brightness    partial shade to low 
inflorescence     length 15 cm  (6"), from the base of the leaves 
nr flowers 
size  single flower  8 L 11 cm  (3.2" L 4.4")
duration  inflorescence ≈ 90 - 120
time  birth to bloom, ≈ 30 days 
CITES appendix 

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