Aerangis citrata

Aerangis citrata

Aerangis citrata                                                                                                                                                                   photo C.Solimbergo
   
taxonomy described by (Thouras) Schlechter, Friederich Richard Rudolf 
  published in      Die Orchideen 598   1914
     
  Family Orchdaceae
  Subfamily Epidendroideae
  Tribe Vandeae
  Subtribe Aerangidinae
  Genus Aerangis  Reichenbachf. 1865
     
  chromosomes   2n = 50  
  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 origin Madagascar, on small trees in moist forests (Antananarivo, Antsiranana, Fianarantsoa, Mahajanga, 
    Toamasina, Toljara, Perinet, Sava, Sambava, Bevontro, Tsaratanana Massif, Morafeno, Befosa River,  
    Andapa, Andasibe, Andohahela Reserve, Moramanga, Menalamba, Ambatony forest, Anjialavabe, 
    Ankiakabe, Tsaralanto)
  altitude  0 - 1567 m (0 - 5171 ft)
  habitat climate informations from Ambalasoa (Toljara, Madagascar)
    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 800 m) :
    Aerangis citrata b gr uk
  photoperiod in Ambalasoa this orchid bloom with a photoperiod, that varies during the year, from 13 h 32 m' to 10 h 28 m'
  life form epiphyte
  brightness    low
     
inflorescence     length 18 - 30 cm (7.2" - 12"), axillary
  nr flowers 18 - 22, fragrant
  size single flower  1.5 L 1.5 cm  (0.6 L 0.6") - spur 2 cm (0.8")
  duration inflorescence  20 days
  time to bloom from birth, ≈ 100 days
     
CITES appendix II

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