Odontoglossum armatum Rchb. f. 1877 SECTION Auriculatum SERIES Cruentum Dalstrom 2020

Photo by Guido Deburghgraeve

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Common Name The Armed Odontoglossum

Flower Size 2" [5 cm]

Found in Colombia, Ecuador and Peru in cold, wet, montane cloud forests at elevations of 2300 to 3500 meters as a small sized, cold growing epiphyte with a rhizome enveloped by imbricating, scarious bracts giving rise to ovoid-pyriform, compressed, ancipitous pseudobulbs enveloped by imbricating pairs of bracts with the uppermost leaf-bearing, a single, apical, linear-oblanceolate, acute, thin, attenuate to a strongly conduplicate, petiolate base leaves that blooms in the summer on an axillary, 6 1/4" [16 cm] long, erect to arcuate, 4 to 6 flowered, racemose or paniculate inflorescence with 1 to 2 tubular, green bracts arising on a newly maturing pseudobulb, that is longer than the leaves occurring in the fall.

Synonyms Oncidium armatum [Rchb.f] Chase & NH Wms. 2008

References W3 Tropicos, Kew Monocot list , IPNI ; Icones Planetarum Tropicarum plate 944 Dodson 1984 drawing fide; Icones Orchidacearum Peruviarum Plate 126 Bennett & Christenson 1993 Drawing ok; AOS Bulletin Vol 65 No 1 1996 photo fide; AOS Bulletin Vol 65 No 3 1996 photo fide; Rudolf Schlechter Die Orchideen Band 1C lieferung 33 - 36 2057 - 2308 Brieger 1997; Native Colombian Orchids Vol 6 COS 1998 photo fide; Native Ecuadorian Orchids Vol 3 Dodson 2002 drawing/photo fide to second photo; Orchid Species Culture: Oncidium, Bakers 2006; AOS Bulletin Vol 77 No 12 2008 as Oncidium armatum; Orchid Species of Peru Zelenko Bermudez 2009 photo fide; The Odontoglossum Story Dalstrom, Higgins & Deburghgraeve 2020 drawing/photo fide

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