Oncidium andradeanum Dodson & Bennett 1989 SECTION Oblongata


Photos by Charles McCartney

Another Color

Photo by Pieter Brouwer and his Orchid Webpage

TYPE Drawing

TYPE Drawing by Bennett & Dodson

Partial ShadeHot CoolWinter

Common Name or Meaning Andrade's Oncidium [Ecuadorian Discoverer of Species current]

Flower Size .8" [2 cm]

Found in Ecuador and Peru in montane wet forests on the western slope of the Andes at elevations of 100 to 1800 meters as a hot to cool growing epiphyte with ovate, laterally strongly compressed, ancipitous pseudobulbs partially enveloped below by a few pairs of opposite, conduplicate, leafless and leafbearing sheaths and carrying 2, apical, erect, lanceolate, acute, narrowing below into the conduplicate base leaves that blooms in the winter on an ascending to almost erect, axillary, the peduncle shorter than the rachis, paniculate, 8 to 18 very short branched, several flowered inflroescence with a single flower to each branch and carrying scentless flowers.

Similar to O peltiforme but O andradeanum differs in the finely gibbous blade of the callus ending in 5 rows of tubercules and by a rounded, variably erose, and undulate anterior end of the lip


References W3 Tropicos, Kew Monocot list , IPNI ; *Icones Planetarum Tropicarum Plate 120 Dodson & Bennett 1989 drawing fide; Native Ecuadorian Orchids Vol 3 Dodson 2002 photo fide; Orchid Species Culture Odontoglossum/Oncidium Alliance Bakers 2006; Oncidium Vol 3 Koniger 2007 photo/drawing fide much shorter, rounded sepals and petals ;