Oncidium abortivum Rchb.f 1849 SECTION Heterantha Photo courtesy of Jay Pfahl

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Common Name The Aborted Oncidium

Flower Size 1/4" [6 mm]

Found in Venezuela Colombia, Peru and Ecuador in wet montane cloud forests at elevations of 200 to 1850 meters as a small sized, hot to cool growing epiphyte with round, compressed, smooth pseudobulbs partially enveloped basally by several leaf-like sheaths and carrying a single, apical, linear, acute, conduplicate below into the base leaf that blooms on a 2" [5 cm] long, paniculate, several flowered inflorescence with a few sterile flowers on each branch and only one or two viable flowers.

Synonyms Cyrtochilum orthotis (Rchb.f.) Kraenzl. 1917; Heteranthocidium abortivum (Rchb.f.) Szlach., Mytnik & Romowicz 2006;

References W3 Tropicos, Kew Monocot list , IPNI ; Bonplandia Rchb.f 1853; Das Pflanzenreich Odontoglossum/Oncidium Kranzlin 1922 as Cyrtochilum orthotis drawing fide; Venezuelan Orchids Illustrated Vol 1 Dunsterville & Garay 1959 drawing fide; Flora de Venezuela Foldats Volumen XV Part 5 1970 drawing fide; Orchids of Venezuela An Illustrated Field Guide Vol 2 Dunsterville & Garay 1979 drawing fide; Icones Planetarum Tropicarum plate 177 Dodson 1980 drawing hmm; Orchids from The Coast Of Ecuador Arosemana, Jurado, Estrada and Konanz 1988 photo ok; Native Colombian Orchids Vol 3 COS 1991 as Oncidium orthotis photo fide = O abortivum; Rudolf Schlechter Die Orchideen Lieferung 33-6 1997 photo ok; Native Colombian Orchids Vol 6 COS 1998 errata = O abortivum; Orchids of Venezuela [An illustrated field guide] Vol. 2 Ramiro and Carnevali 2000 drawing fide; Orquideologia Vol. 23 No 2 2004; Orquideologia Vol. 23 No 2 2004 as O orthotis; Orchid Species Culture: Oncidium, Bakers 2006 as Oncidium abortivum and Cyrtochilum orthotis (Rchb.f.) Kraenzl. 1917 [I think not]; Native Ecuadorian Orchids Vol 4 Dodson 2003 as O orthotis drawing hmm; Oncidium Vol 1 Koniger 2004; The Pictoral Encyclopedia of Oncidium Zelenko 2002 as Onc orthotis [Not]; Orchid Species of Peru Zelenko Bermudez 2009 as O orthotis photo ok; Orchid Species of Peru Zelenko Bermudez 2009 as O sp. photo pg 261 fide; An Illustrated Field Guide to the Orchids of the Yotoco Forest Reserve Colombia Kolanowska, Escobar, Sanchez & Szlachetko 2011 as Heteranthocidium abortivum drawing ok

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