Oncidium edwallii Cogn. 1905 SECTION Paucituberculata Photo by Neville DeLaRue

Common Name Edwall's Oncidium [Swedish Orchid Collector]

Flower Size 1/2" [1.5 cm]

This small, warm to cool growing epiphytic species occurs in the Serra do Mar of Sao Paulo State Brazil in hot humid lowlands of the coast and interior marshlands and has rounded, sharply laterally compressed, ancipitous pseudobulbs partially enveloped basally by several pairs of distichous, imbricating, leaflike sheaths and carrying an apical, single, narrowly oblong, leathery, acute, slightly conduplicate at the base leaf that blooms in the fall on a basal, arcuate, 4" to 12" [10 to 30 cm] long, paniculate, few to many flowered inflorescence arising on a newly matured pseudobulb.

Synonyms Aurinocidium edwallii ( Cogn. ) Romowicz & Szlach. 2006; Epidendrum monophyllum Vell. 1831; Grandiphyllum edwallii ( Cogn. ) Docha Neto 2006

References W3 Tropicos, Kew Monocot list , IPNI ; Das Pflanzanreich Regni Vegetabilis Conspectus Odontoglossum/Oncidium Kranzlin 1922; Orchidaceae Brasilenses Band 2 Pabst & Dungs 1977 drawing fide; Rudolf Schlechter Die Orchideen Band 1C lieferung 33 - 36 2057 - 2308 Brieger 1997 ; 100 Orquideas Argentinas Freuler 2005 photo fide; Orchid Species Culture: Oncidium, Bakers 2006; Oncidium Vol 2 Koniger 2005; The Pictoral Encyclopedia of Oncidium Zelenko 2002; Orquideologia Vol 26 No 1 2009 photo