Odontoglossum praestans Rchb.f. & Warsc. 1854 SECTION Canaliculatum SERIES Cirrhosum Dalstrom 2020

Photo by Guido Deburghgraeve

Common Name The Outstanding Odontoglossum

Flower Size 1 1/2" [4 cm]

Found in Colombia, Ecuador, Peru and Bolivia on exposed, brush covered slopes in wet montane forests at an elevation of 1600 to 2100 meters as a small to medium sized, cool to cold growing, caespitose, epiphytic species with an ovoid, laterally compressed, mottled purple brown, slightly ancipitous, rugose pseudobulb subtended by 5 to 9 imbricate, distichous sheaths with the uppermost leaf-bearing and has 1 to 2 apical, oblong, obtuse, conduplicate below into the subpetiolate base leaves that blooms in the winter, spring and summer an axillary, 7 to 9 3/4" [18 to 25 cm] long, erect to arcuate, 4 to 15 flowered, racemose inflorescence that is equal to or longer than the leaves, arising on a mature pseudobulb and carrying several fragrant, showy flowers.

Synonyms Oncidium praestanoides Chase & NH Wms. 2008

References W3 Tropicos, Kew Monocot list , IPNI ; *Bonplandia Rchb.f 1854; Bonplandia Rchb.f 1855; Orquideologia Vol 14 No 1 1979 photo good; Icones Planetarum Tropicarum plate 964 Dodson 1984 drawing fide; Icones Orchidacearum Peruviarum Plate 135 Bennett & Christenson 1993 drawing fide; Rudolf Schlechter Die Orchideen Band 1C lieferung 33 - 36 2057 - 2308 Brieger 1997 photo ok; Native Ecuadorian Orchids Vol 3 Dodson 2002 photo fide; Orchid Species Culture: Oncidium, Bakers 2006; AOS Bulletin Vol 77 No 12 2008 as Oncidium praestanoides; AOS Bulletin Vol 78 #6 2009 photo fide; Orchid Species of Peru Zelenko Bermudez 2009 photo fide; AOS Bulletin Vol 85 #12 2016 as Oncidium praestanoides photo ok; The Odontoglossum Story Dalstrom, Higgins & Deburghgraeve 2020 drawing/photo fide

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