!Ada aurantiaca Lindl. 1853-4 Photo By Jay Pfahl
Another Flower Photo courtesy of Dan and Marla Nikirk

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Common Name or Meaning The Red-Orange Ada
Flower Size 1" [2.5 cm]
Found in Colombia, Venezuela and Ecuador as a medium sized, cold to cool growing epiphyte that occurs around 2150 to 2300 meters in elevation in wet montane forests with elliptic-pyriform, compressed, dark green pseudobulbs subtended by several leaf bearing sheaths and carrying 2 apical, linear-lanceolate, acuminate leaves and blooms on an axillary, erect then arching, 20" [50 cm] long, several to many [18] flowered racemose inflorescence that is equal to the length of the leaves and has large floral bracts as well as has semi-opening flowers occuring in the late winter and early spring.
Synonyms Ada cinnabarina (Linden ex Lindl.) N.H. Williams ?; Ada lehmannii Rolfe 1891; Brassia cinnabarina Linden ex Lindl. 1854; Mesospinidium aurantiacum (Lindl.) Rchb. f. 1864; Mesospinidium cinnabarinum (Linden ex Lindl.) Rchb. f. 1864; Oncidium cinnabarinum (Linden ex Lindl.) Rchb. f. 1864
References W3 Tropicos, Kew Monocot list , IPNI ; Venezuelan Orchids Vol 5 Dunsterville & Garay 1966; Flora de Venezuela Foldats Volumen XV Part 5 1970; Orchid Species Culture: Oncidium, Bakers 2006; The Pictoral Encyclopedia of Oncidium Zelenko 2005; Orquedias Nativas de Tachira Fernandez 2003; Manual of Cultivated Orchids Bechtel, Cribb, Laurent 1992; The Illustrated Encyclopedia of Orchds Pridgeon 1992; Orchids of Venezuela [An illustrated field guide] Vol. 1 Dunsterville and Garay 1979; Flora's Orchids Nash and La Croix 2005; Botanica's Orchids Laurel Glenn 2002; Native Colombian Orchid Vol 1 COS 1990;