Oncidium dichromaticum Rchb.f. 1855 SECTION Oblongata

Plant closeup

Photo by Jay Pfahl

Part shade Hot Warm Spring

Common Name or Meaning The Two Colored Oncidium

Flower Size 1" [2.5 cm]

Found in the Guanacaste coast of Costa Rica and Panama at elevations of 20 to 1100 meters as a small sized, hot to warm growing epiphyte on large tree trunks among Oncidium ampliatum, distinguished out of flower by it's less rounded, flat, smooth pseudobulbs with deep purple brown spots and has a small interuption at the apex where it carries 3 apical, linear-lanceolate, acute, narrowing below into a conduplicate base leaf that blooms in the spring on a 16" + {40 cm+} long, paniculate, with short, slender, several flowered inflorescence carrying a few flowers on each branch

Synonyms Oncidium andreae Königer 1996; Oncidium cabagrae Schltr. 1911; Oncidium castaneum Rchb.f. ex Kraenzl. 1922; Oncidium rechingerianum Kraenzl. 1922

References W3 Tropicos, Kew Monocot list , IPNI ; Lankester's Epidendra Website CR; *Bonplandia 3: 215. 1855; Das Pflanzanreich Regni Vegetabilis Conspectus Odontoglossum/Oncidium Kranzlin 1922 as O rechingerianum drawing ok; Das Pflanzanreich Regni Vegetabilis Conspectus Odontoglossum/Oncidium Kranzlin 1922 drawing ok; Das Pflanzanreich Regni Vegetabilis Conspectus Odontoglossum/Oncidium Kranzlin 1922 as Oncidium cabagrae; Das Pflanzanreich Regni Vegetabilis Conspectus Odontoglossum/Oncidium Kranzlin 1922 as Oncidium castaneum; Repert. Sp. Nov. Regni. Veg. Beih. 19: 258. Costa Rica Schlechter 1923 as O cabagre; Repert. Sp. Nov. Regni. Veg. Beih. 19: 261. Costa Rica Schlechter 1923 as O rechingerianum; The Orchids of Panama L.O. Williams & P Allen 1946 as O cabagre; Encyclopedia of Cultivated Orchids Hawkes 1965 as O cabagre; Icones Planetarum Tropicarum Plate 1466 Mora & Atwood 1992 as O cabagrae drawing soso; Rudolf Schlechter Die Orchideen Band 1C lieferung 33 - 36 2057 - 2308 Brieger 1997 as O cabagre drawing soso; Fieldiana Biology, Flora Costa Ricensis Family # 39 Orchidaceae, subtribes Maxillariinae and Oncidiinae Atwood & Mora 1999 drawing fide; Manual de Plantas de Costa Rica Vol 3 Hammel, Grayum, Herrera and Zamora 2003; Orquideologia Vol. 23 No 2 2004 as O andreae; Orquideologia Vol 23 #2 2004 as O cabagre ; Orquideologia Vol 23 #2 2004; Oncidium Vol 2 Koniger 2005 drawing/photo fide; Orchid Species Culture: Oncidium, Bakers 2006; Orquideas de la Serrania del Baudo Misas Urreta 2006 drawing/photo fide;

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