Oncidium divaricatum Lindl. 1828 SECTION Crassifolia

Photo by Amerigo Docha Net and the Orchidstudium website

Albino Flower Close Up

Photo by Kjell Nilsson

SOMETIMES to

Common Name The Spread Out Oncidium [refers to the wide spread inflorescence]

Flower Size 1" [2.5 cm]

Found in southern Brazil and northern Argentina on the moist slopes of the coastal mountains at elevations up to 700 meters as a small to medium sized, cold to cool growing epiphyte with suborbicular, strongly compressed, yellow green, discoid pseudobulbs carrying a single, apical, narrowly oblong to oblong-elliptic, coriaceous, suberect, obtuse leaf that blooms in the fall on a paniculate, 4' to 6'8" [120 to 200 cm] long, dull purple inflorescence with 6 to 15 branches, each branch 3 to 10 flowering and having narrowly ovate, very acute floral bracts and carrying scented or not flowers.

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

Synonyms Aurinocidium divaricatum ( Lindl. ) Romowicz & Szlach. 2006; Grandiphyllum divaricatum ( Lindl. ) Docha Neto 2006; Oncidium divaricatum var. cupreum Lindl. 1827

References W3 Tropicos, Kew Monocot list , IPNI ; Atlas des Orchidees Cultivees Constantin 1920 drawing ok; Das Pflanzanreich Regni Vegetabilis Conspectus Odontoglossum/Oncidium Kranzlin 1922; Encyclopedia of Cultivated Orchids Hawkes 1965; Orchidaceae Brasilenses Band 2 Pabst & Dungs 1977 drawing fide; The Manual Of Cultivated Orchid Species Bechtel, Cribb & Launert 1992 photo fide; Rudolf Schlechter Die Orchideen Band 1C lieferung 33 - 36 2057 - 2308 Brieger 1997; The Pictoral Encyclopedia of Oncidium Zelenko 2002 drawing fide; Orchid Species Culture: Oncidium, Bakers 2006; Oncidium Vol 1 Koniger 2004; AOS Bulletin Vol 86 # 3 2017 as Grandiphyllum divaricatum drawing fide;

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