Odontoglossum hallii Lindley 1837 SECTION Auriculatum SERIES Cristatum Dalstrom 2020

Flower Closeup

Photo by Pieter C. Brouwer and his Nature Photo Website

Another Clone

Photo courtesy of Patricia Harding.

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Common Name Hall's Odontoglossum [English Collector - Ecuador 1800's]

Flower Size to about 4" [to about 10 cm]

Found in Colombia, Ecuador and Peru on small trees or terrestrial in leaf litter in very wet montane cloud forests at altitudes of 1200 to 3000 meters and is a medium sized, cold to cool growing epiphyte with clustered, oblong-ovoid to ovoid, compressed, ancipitous pseudobulbs enveloped basally by 2 to 4, distichous, leaf bearing sheaths and carrying 1 or 2 apical, oblong-lanceolate to ligulate, acute leaves that are conduplicate below into a petiole-like stem that blooms in the spring and summer on an basal, arising on a mature pseudobulb through the uppermost leaf axils, erect to arcuate, to 2' [60 cm] long, racemose or rarely paniculate, 4 to 20 flowered inflorescence with large, variably colored, distincly scented, stellate to slightly campanulate flowers.

Synonyms Odontoglossum victor Rchb.f 1883; Odontoglossum hallii var. leucoglossum Rchb.f. in ?; Odontoglossum hallii var. xanthoglossum Rchb.f. 1879; Oncidium hallii [Lindl.] Beer 1854

References W3 Tropicos, Kew Monocot list , IPNI ; Xenia Orchidaceae Rchb.f 1854 drawing fide; Otia Botanica Hamburgensia Rchb.f 1878; Die Orchideen Schlechter 1915; Atlas des Orchidees Cultivees Constantin 1920 drawing fide; Encyclopedia of Cultivated Orchids Hawkes 1965; Orquideologia Vol 12 No 3/4 1977/8; Icones Planetarum Tropicarum plate 468 Dodson 1982 drawing fide; The Manual Of Cultivated Orchid Species Bechtel, Cribb & Launert 1992 photo fide; AOS Bulletin Vol 65 No 7 1996 photo fide; Rudolf Schlechter Die Orchideen Band 1C lieferung 33 - 36 2057 - 2308 Brieger 1997 photo hmm; Native Ecuadorian Orchids Vol 3 Dodson 2002 photo fide; AOS Bulletin Vol 73 No 5 2004 photo fide; AOS Bulletin Vol 74 No 10 2005 photo fide; Orchid Species Culture: Oncidium, Bakers 2006; Orchid Digest Vol 75 #4 2011 as Oncidium hallii Photo fide; Lankesteriana 12[3]: 155-160 Dalstrom 2012 drawing/photo fide; Orchid Digest Vol 81 #2 2017 as Oncidium hallii photo fide; The Odontoglossum Story Dalstrom, Higgins & Deburghgraeve 2020 drawing/photo fide