Oncidium retusum Lindl. 1827 SECTION Heterantha

Photo by J P Janovec and Atrium Biodiversity Project

Part shade Cool Cold

Common Name The Retuse Oncidium

Flower Size .4" [1 cm]

Found in Peru at elevations around 1500 to 3000 meters as a small to medium sized, cool to cold growing epiphyte with a short to shortly ascending rhizome giving rise to elliptical to ovate, laterally compressed pseudobulbs carrying 2 apical, lanceolate, acute, gradually narrowing below into the petiolate base leaves that blooms on a a paniculate, erect, twining, heteranthous, about 10 short branched, very long, several flowered inflorescence held all along the rachis and has 1 to 4 abortive and 1 to 4 fertile flowers on each branch.

Synonyms Heteranthocidium retusum (Lindl.) Szlach. & Kolan. 2015

References W3 Tropicos, Kew Monocot list , IPNI ; Das Pflanzanreich Regni Vegetabilis Conspectus Odontoglossum/Oncidium Kranzlin 1922 drawing good; Icones Planetarum Tropicarum Plate 142 Dodson & Bennett 1989 drawing fide; Icones Orchidacearum Peruviarum Plate 145 Bennett & Christenson 1993 drawing fide; Native Ecuadorian Orchids Vol 4 Dodson 2003 photo fide; Oncdium Vol 1 Koniger 2004 photo/drawing fide; Orchid Species of Peru Zelenko Bermudez 2009 photo fide; Orchid Digest Vol 74 #3 2010 photo fide;