Cyrtochilum myanthum (Lindl.) Kraenzl. 1917 SECTION Myanthium Lindley Photo by © Lourens Grobler.

Inflorescence Photo by © Patricia Harding.

Inflorescence in situ Ecuador Photo by © Lourens Grobler

Common Name The Letter "M"-Shaped Odontoglossum

Flower Size 2/5" [1 cm]

Found in Ecuador and Peru in upper montane cloud forests at elevations of 1450 to 3300 as a large sized, cool to cold growing epiphyte or terrestrial on steep embankments with cylindrical, flattened, elongate pseudobulbs completely enveloped basally by imbricating, distichous sheaths with the uppermost being leaf-bearing and carrying a single, apical, linear-lanceolate, conduplicate towards the base leaf and blooming at any time of the year on an axillary, slender, erect to arching, 3' [90 cm] long, shortly pedunculate, paniculate, widely spaced, shortly branched, horizontal, often rebranching, rebranch fractiflex, densely multi-flowered inflorescence arising on a mature pseudobulb through the axil of a basal sheath and carrying very small flowers.

Synonyms Cyrtochilum mentigerum (Rchb.f. & Warsz.) Kraenzl. 1917; Dasyglossum mentigerum (Rchb.f. & Warsz.) Königer & Schildh. 1994; Dasyglossum myanthum (Lindl.) Königer & Schildhauer 1994; Irenea myantha (Lindl.) Szlach., Mytnik, Górniak & Romowicz 2006; Odontoglossum mentigerum Rchb.f. & Warsz. 1854; Odontoglossum myanthum Lindl. 1844; Oncidium mentigerum (Rchb.f. & Warsz.) Lindl. 1855; Trigonochilum mentigerum (Rchb.f. & Warsz.) Senghas 2003; Trigonochilum myanthum (Lindl.) Senghas 1997;

References W3 Tropicos, Kew Monocot list , IPNI ; Bonplandia Rchb.f 1854 as Odontoglossum mentigerum; Das Pflanzenreich Odontoglossum/Oncidium Kranzlin 1922 drawing hmm; Das Pflanzenreich Odontoglossum/Oncidium Kranzlin 1922 as C mentigerum; Orchids of Peru Vol 4 Schweinfurth 1961 as Odontoglossum myanthum; Orchids of Peru Vol 4 Schweinfurth 1961 as Oncidium mentigerum; Icones Planetarum Tropicarum plate 961 Dodson 1984 drawing good; Icones Planetarum Tropicarum Series II Orchids of Peru Plate 0116 Dodson & Bennett 1989 as Odontoglossum myanthum drawing hmm; Icones Planetarum Tropicarum Series II Orchids of Peru Plate 0133 Dodson & Bennett 1989 as Oncidium mentigerum drawing hmm?; Rudolf Schlechter Die Orchideen Lieferung 33-6 1997 as Trigonidium myanthum drawing ok; Icones Orchidacearum Peruviarum Plate 732 Bennett & Christenson 2001 drawing good; Lindleyana Vol 16 No 2 2001; The Pictoral Encyclopedia of Oncidium Zelenko 2002 drawing fide; Native Ecuadorian Orchids Vol 3 Dodson 2002 drawing/photo fide; Orquideologia Vol. 23 No 2 2004 as Oncidium mentigerum; Orchid Species Culture: Oncidium/Odontoglossum alliance Bakers 2006; Orchid Species of Peru Zelenko & Bermudez as C sp photo fide; Flora of Ecuador No 87 225[3] Orchidaceae Dodson & Luer 2010 drawing fide; Orquideas de Zamora Chinchipe Tomo 1 Epidendroideae I Jimenenz 2014 photo fide; Orchids of the Department of Valle de Cauca Colombia Vol 4 Kolanowska and Szlachetko 2016 as Dasyglossum myanthum drawing ok

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