Cyrtochilum ventilabrum (Rchb.f. & Warsz.) Kraenzl. 1917

Part Shade Cool Cold Summer

Common Name The Wind-Blown Cyrtochilum [refers to the moveable lip]

Flower Size 1.8" [4 cm]

Found in Colombia, Venezuela, Ecuador and Peru in high, wet montane cloud forests in dense vegetation in thin soil at elevations of 1500 to 3500 meters as a giant sized, cool to cold growing terrestrial or lithophyte with a woody rhizome with 8" [20 cm] between each, smooth, somewhat laterally compressed, ovoid pseudobulbs enveloped partially basally by several, leaf-bearing sheaths and carrying oblanceolate to linear-oblanceolate, light to medium green, shallowly grooved above and slightly keeled below leaves that blooms in the summer on an axillary, to 98" [to 250 cm], paniculate, shortly many branched rarely rebranching, each branch to 8 flowerd, many flowered inflorescence arising on a newly maturing pseudobulb.

Synonyms Cyrtochilum carderi (Rchb.f.) Kraenzl. 1917; Oncidium carderi Rchb.f. 1875; Oncidium undulatum Lindl. 1841; *Oncidium ventilabrum Rchb.f. & Warsz. 1854

References W3 Tropicos, Kew Monocot list , IPNI ; Bonplandia Rchb.f 1854 as Oncidium ventilabrum; Das Pflanzenreich Odontoglossum/Oncidium Kranzlin 1922 drawing fide; Das Pflanzenreich Odontoglossum/Oncidium Kranzlin 1922 as C carderi drawing good; Orchids of Peru Vol 4 Schweinfurth 1961 as Oncidium ventrilabrum; Venezuelan Orchids Vol 4 Dunsterville & Garay 1966 as Oncidium carderi; Flora de Venezuela Foldats Volumen XV Part 5 1970 as Oncidium carderi; Native Colombian Orchids Vol 1 COS 1990 as C carderi photo fide; Icines Orchidacearum Peruviarum Plate 146 Bennett & Christenson 1993 drawing ok; Rudolf Schlechter Die Orchideen Lieferung 33-6 1997 as C carderi; AOS Bulletin Vol 67 No 1 1998 photo; Lindleyana Vol 16 No 2 2001; Native Ecuadorian Orchids Vol 4 Dodson 2003 as Oncidium ventrilabium drawing/photo fide; Orquideas Nativas del Tachira Cesar Fernandez 2003 as C detortum photo fide; Orchid Species Culture Oncidum/Odontoglossum alliance Bakers 2006; ; Orquideologia Vol 25 #2 2008 photo fide; 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 C ventilabrum drawing good

--------------------------------------------------------------------------------------------------------------------------