Oncidium ottonis Schltr. 1914 SECTION Concoloria Photo by © Eric Hunt and his Flicker Orchid Photostream

Side View OF Flower Photo courtesy of Patricia Harding

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Common Name Otto's Oncidium [Otto Beyrodt Director of Berlin Botanic Garden late 1800's]

Flower Size 1 3/4" [4.5 cm]

Found in Parana, Santa Catarina and Rio Grande Do Sul states of Brazil at elevations of 600 to 1200 meters as a medium sized, warm to cool growing epiphyte with ovate, laterally compressed, ancipitous pseudobulbs partially enveloped basally by 2 pairs of dry thin leafless sheaths and carrying 2, apical, lanceolate, acute, conduplicate below into the elongate, narrowing petiole-like base leaves that blooms on an axillary, racemose, few [4 to 5] flowered in the apical 1/2, 4 1/2" [11 cm] long inflorescence that arises on a newly matured pseudobulb with spicely fragrant, large flowers.

This species is often cited as a synonym of Oncidium concolor but differs in having the lamellae of the callus are equal in height from start to finish and other floral differednces in the lip but most importantly O ottonis will always have brown spots on the dorsal side of the sepals while O concolor has a uniform yellow green on both sides of the sepals.

Synonyms Concocidium ottonis (Schltr.) Romowicz & Szlach.2006; Oncidium concolor var. ottonis (Schltr.) Pabst 1957

References W3 Tropicos, Kew Monocot list , IPNI ; AOS Bulletin Vol 30 No 9 1961; Oncidium Vol 2 Koniger 2005; Orchids of Brazil Vol 1 Oncidinae Baptista, Harding & Neto 2011 as Brasilidium ottonis photo fide

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