Cyrtochilum divaricatum (Lindl.) Dalström 2001 SECTION Eucyrtochilum Kranzlin
Photos by Guido Deburghgraeve ©
Common Name The The Spread Out Cyrtochilum [refers to the wide spread, paniculate inflorescence]
Flower Size 1" [2.5 cm]
Found in Venezuela, Colombia and Peru in dense thickets and brambles in thin soil on large boulders at elevations of 1900 to 2700 meters as a medium sized, cold growing epiphyte or terrestrial with a climbing rhizome giving rise to green, wrinkled, strongly compressed, ovoid pseudobulbs enveloped basally by several persistent, leaf bearing sheaths and carrying 2 to 3, apical, strap-shaped, sharply acute, tightly conduplicate below into the short, petiolate base leaves that blooms in the winter on an axillary, to 79" [to 200 cm] long, long pdunculate, many [to 50] flowered, paniculate inflorescence with somewhat short branches that can rebranch and can carry up to 8 flowers on each.
Synonyms Cyrtochilum costatum (Lindl.) Kraenzl. 1917; Cyrtochilum mandibulare (Linden & Rchb.f.) Kraenzl. 1917; Cyrtochilum refractum (Rchb.f.) Kraenzl. 1917; Odontoglossum costatum Lindl. 1852; *Odontoglossum divaricatum Lindl. 1846; Oncidium costatum (Lindl.) Beer 1854; Oncidium divaricatum (Lindl.) Beer 1854; Oncidium mandibulare Linden & Rchb.f. 1854; Oncidium refractum Rchb.f. 1854
References W3 Tropicos, Kew Monocot list , IPNI ; Bonplandia Rchb.f 1853 as Oncidium refractum; Bonplandia Rchb.f 1854 as Oncidium mandibulare; Bonplandia Rchb.f 1855 as Oncidium refractum; Die Orchideen Schlechter 1915 as Oncidium divaricatum; Das Pflanzenreich Odontoglossum/Oncidium Kranzlin 1922 as C mandibulare drawing good; Das Pflanzenreich Odontoglossum/Oncidium Kranzlin 1922 as C refractum drawing good; Das Pflanzenreich Odontoglossum/Oncidium Kranzlin 1917 as C costatum drawing not; Venezuelan Orchids Illustrated Vol 3 Dunsterville & Garay 1965 as Oncidium costatum drawing fide; Flora de Venezuela Volumen XV Part 5 Foldats 1970 as Oncidium costatum drawing fide; Orchids of Venezuela, An Illustrated Field Guide Vol 2 Dunsterville & Garay 1979 as Oncidium costatum drawing fide;Rudolf Schlechter Die Orchideen Band 1C lieferung 33 - 36 2057 - 2308 Brieger 1997 as C costatum; Orchids of Venezuela [An illustrated field guide] Vol. 2 Ramiro and Carnevali 2000 as Oncidium costatum drawing fide; *Lindleyana Vol 16 No 2 2001; The Pictoral Encyclopedia of Oncidium Zelenko 2002 drawing good; Orquideas Nativas del Tachira Cesar Fernandez 2003 photo fide as Cyrtochilum costatum; Native Ecuadorian Orchids Vol 4 Dodson 2003 as Oncidium divaricatum photo fide; Orchid Species Culture: Oncidium/Odontoglossum alliance Bakers 2006; Orquideologia Vol 25 #2 2008; Orchid Species of Peru Zelenko Bermudez 2009 photo fide; Flora of Ecuador No 87 225[3] Orchidaceae Dodson & Luer 2010 drawing fide; Orchids of the Department of Valle de Cauca Colombia Vol 4 Kolanowska and Szlachetko 2016 as Cyrtochilum costatum drawing good; Orquideas Del Valle De Aburra Medellin Colombia COS 2014 photo good; Orchids, A Colombian Treasure Vol 1 Ortiz & Uribe 2014 drawing/photo fide; Orquideas de Farallones de Cali Galindo-Tarazona, Haelterman, Zuluaga Trochez and Sebastian Moreno 2020 photo fide
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