Oncidium robustissimum Rchb. f. 1888 SECTION Crassifolia

Photo Amerigo Docha Neto and the Orchidstudium Webpage

Common Name The Very Powerful Oncidium

Flower Size 1" [2.5 cm]

Found in Brazil at elevations of 1000 to 2000 meters as a medium sized, cool growing epiphyte with short, stout, elliptic, laterally compressed, ancipitous pseudobulbs partially enveloped by dry, thin leafless sheaths and carrying a single, apical, fleshy, olive green, oblong, dorsally keeled, conduplicate below into the base leaf that blooms winter and spring on a stout, many branched, to 6' 8" [2 m] long, paniculate inflorescence with triangular-lanceolate, acute floral bracts and 6" long branches carrying many, spreading flowers

O robustissimum is very similar to and most likely is conspecific with O divaricatum, O sphegiferum and O pulvinatum. If so then O divaricatum takes precendence.

Synonyms *Aurinocidium robustissimum ( Rchb.f. ) Romowicz & Szlach. 2006; Grandiphyllum robustissimum (Rchb.f.) Docha Neto 2006

References W3 Tropicos, Kew Monocot list , IPNI ; Das Pflanzanreich Regni Vegetabilis Conspectus Odontoglossum/Oncidium Kranzlin 1922 drawing ok; AOS Bulletin Vol 37 No 1 1968 photo fide; Orchidaceae Brasilenses Band 2 Pabst & Dungs 1977 drawing fide; The Manual Of Cultivated Orchid Species Bechtel, Cribb & Launert 1992 drawing fide; Rudolf Schlechter Die Orchideen Band 1C lieferung 33 - 36 2057 - 2308 Brieger 1997 ; Oncidium Vol 1 Koniger 2004 photo/drawing as O divaricatum; Orchid Species Culture: Oncidium, Bakers 2006; The Pictoral Encyclopedia of Oncidium Zelenko 2002