Paphiopedilum insigne forma sanderae

Paphiopedilum insigne f. sanderae 

Paphiopedilum insigne, forma sanderae     
                                                                                                               photo C. Solimbergo
taxonomy described by (Wallich ex Lindley)  Pfitzer, Ernst Hugo Heinrich
  published in      Morph. Stud. Orchideenbl.  11    1886
forma sanderae     described by (Reichenbach f.)  Gruss, Olaf  &  Roeth, J.
  published in Caesiana, Associazine Italiana di Orchidologia  12 : 62    1999
  family Orchidaceae
  subfamily Cypripedioideae
  tribe --
  subtribe --
  genus Paphiopedilum  Pfitzer 1886
  section Paphiopedilum  (Karasawa & Saito)  Atwood 1984
  chromosomes     2n = 26
  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 India (Assam, Kalimapang)
  altitude  1000 - 1500 m  (3300 - 4950 ft)
  habitat climate informations from Dibrugarh (Assam, India) 
    Köppen climate classification : Cfa, humid subtropical climate in all seasons, with very hot summers
    the weather station data (temperatures are calculated for an altitude of 1250 m / 4125 ft) :
    Paphiopedilum insigne sanderae b gr uk
  photoperiod  in Dibrugarh this orchid blooms with a photoperiod, which varies during the year, from 12 h 49 m' to 10 h 11 m'
  life form geophyte - on calcareous soil covered with moss
    bloom induction need a december or january rest (Lance A. Birk)
  brightness    partial shade to low
inflorescence     length 10 - 12 cm  (4" - 4.8"), from the base of the leaves 
  nr flowers 1
  size single flower 10 L 9 cm (4" L 3.6")
  duration single flower, ≈ 35 days      
  time to bloom from birth, ≈ 60 - 70 days
CITES appendix  I


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