Angraecum rutenbergianum

Angraecum rutenbergianum

Angraecum rutenbergianum                                                                                                                                         photo C. Solimbergo
   
taxonomy        described by Kraenzlin, Friedrich Wilhelm Ludwig 
  published in       Abhandlungen herausgegeben von Naturwissenschaftlichen Vereine zu Bremen  7 : 257    1882
     
  Family Orchidaceae 
  Subfamily   Epidendroideae
  Tribe Vandeae
  Subtribe Aerangidinae
  Genus Angraecum   Bory 1804
     
  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 humid evergreen forests, on trees or rocks, in Madagascar (Antananarivo, Vakinankaratra,
    Fianarantsoa, Amoron'i Mania, Toliara, Anosy)                   
  altitude  386 - 2200 m (1274 - 7300 ft)              
  habitat climate informations from Ambositra (Amoron'i Mania, Fianaratsoa, Madagascar)
    Köppen climate classification : Cwb, humid subtropical climate, with hot summer
    the weather station data (temperatures are calculated for an altitude of 1300 m / 4290 ft) :
    Angraecum rutenbergianum a gr uk
  photoperiod in Ambositra this orchid bloom with a photoperiod, that varies during the year, from 13 h 28 m' to 10 h 32 m'
  life form epiphyte or litophyte
  brightness    partial shade
     
inflorescence    length 1 cm ( 0.4"), axillary
  nr flowers 1
  size single flower  7 L 8 cm  (2.8" L 3.2") - spur  11 - 13 cm  (4.4" L 5.2")
  duration single flower 24 - 30 days
  time to bloom from birth, ≈ 20 - 30 days
     
CITES appendix II

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