Trigonidium egertonianum

Trigonidium egertonianum

Trigonidium egertonianum                                                                                                                                             photo C. Solimbergo
   
taxonomy described by (Lindley)  Bateman, James
  published in       Edwards' s Botanical Register  24 : misc . 73 - 74    1838
     
  family Orchidaceae
  subfamily Epidendroideae
  tribe Cymbidieae
  subtribe Maxillariinae
  genus Trigonidium  Lindley 1837
     
  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 forests in Mexico (Chiapas, Ocosingo, Oaxaca, Quintana Roo, Othòn, Hueyapan, Tabasco), Belize (Cajo, 
    Corozal, Stan Creek, Toledo), Guatemala (Izabal, Petèn, Alta Verapaz, Quetzaltenango, Sacatepèquez),
    Honduras (Baia Duke), El Salvador (Santa Ana), Nicaragua (Boaco, Chontales, Granada, Jinotega),
    Costa Rica (Alayuela,Heredia, Sarapiquì, Limòn, Puntarenas, Golfito, Osa, Cartago), Venezuela (Zulia, Orinoco Bas.) 
    Colombia (Chocò, Riosucio, Rio Hacha, San Miguel, Orinoco Bacin), Ecuador (El Oro, Esmeraldas,
    Guayas, Los Rios, Manabì)
  altitude 0 - 1100 m (0 - 3630 ft)
  habitat climate informations from Ciudad Bolivar (Orinoco Basin, Venezuela)
    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 550 m / 1815 ft) :
    Trigonidium egertonianum b gr uk
  photoperiod in Ciudad Bolivar this orchid bloom with a photoperiod, that varies during the year, from 12 h 36 m' to 11 h 24 m'
  life form epiphyte
  brightness    partial shade to low
     
inflorescence     length 16 - 18 cm (6.4" - 7.2"), basal  
  nr flowers 1
  size single flower 1.3 L 1 cm (0.52" L 0.4")
  duration single flower  ≈ 13 days
  time to bloom from birth, ≈ 10 days
     
CITES appendix II

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