Cyrtochilum auropurpureum (Rchb.f.) Dalström 2001 Photo by © Jay Pfahl.

Common Name The Yellow/Purple Cyrtochilum

Flower Size 2.2" [5.5 cm]

Found in Ecuador, Colombia and Venezuela in upper level cloud forests at elevations of 2500 to 3500 meters as a medium sized, cold growing epiphyte or terrestrial orchid with ovate, tapering apically, laterally compressed, ancipitous, longitudinally ridged and grooved with age pseudobulbs partially enveloped basally by 2 to 3 pairs of distichous, imbricating, conduplicate, leaf bearing sheaths and carrying 2 to 3 apical, erect to slightly spreading, narrowly lanceolate, acute, dark green, narrowing below into a conduplicate, long, petiolate base leaves that blooms in the spring on basal, erect, to 59" [150 cm] long, pyramidically paniculate, many [to 150] flowered inflorescence arising from a mature pseudobulb and carries several, slightly fractiflex, widely spread branches with 5 to 8, nonfragrant flowers.

Synonyms *Odontoglossum auropurpureum Rchb.f. 1850; Odontoglossum compactum Rchb.f. 1875; Odontoglossum floribundum Schltr. 1924; Odontoglossum koehleri Schltr. 1921; Odontoglossum orientale Rchb.f. 1879; Oncidium auropurpureum (Rchb.f.) Beer 1854

References W3 Tropicos, Kew Monocot list , IPNI ; Bonplandia Rchb.f 1854 as Odontoglossum auropurpureum; Die Orchideen der Sudamerikanischen Kordillerenstaaten IV Peru Schlechter 1921 as Odontoglossum koehleri; Beitrage Zur Orchideenkunde Von Colombia 27:107 Schlechter 1924 as O floribundum; Venezuelan Orchids Vol 5 Dunsterville & Garay 1972 as Odontoglossum auropurpureum; Flora de Venezuela Foldats Volumen XV Part 5 1970 as Odontoglossum auropurpureum drawing fide; Orchids of Venezuela ; An Illustrated Field Guide Vol 2 Dunsterville & Garay 1979 as Odontoglossum auropurpureum drawing fide; Icones Planetarum Tropicarum plate 955 Dodson 1984 as Odontoglossum koehleri drawing fide; Orchids of Venezuela [An illustrated field guide] Vol. 2 Ramiro and Carnevali 2000 as Odontoglossum auropurpureum drawing fide; *Lindleyana Vol 16 No 2 2001; Native Ecuadorian Orchids Vol 3 Dodson 2002 drawing/photos fide; Orchid Species Culture: Oncidium, Bakers 2006; Libro Rojo de Plantas De Colombia Vol 6 Primera Parte Saenz 2007 as Odontoglossum aureopurpureum; Libro Rojo de Plantas De Colombia Vol 6 Primera Parte Saenz 2007 as Odontoglossum compactum; Flora of Ecuador No 87 225[3] Orchidaceae Dodson & Luer 2010 drawing fide

--------------------------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------