Sobralia leucoxantha Rchb. f. 1866 SECTION Abbreviatae
Photo by © Dressler
Photo by Daniel Jimenez
to 
and EARLY
Common Name The White-Yellow Sobralia
Flower Size 4 to 6 1/2" [10 to 16 cm]
Found in Costa Rica, Panama and Colombia as a large to giant sized, warm to hot growing terrestrial or epiphyte at altitudes below 1000 meters with elongate stems carrying several, broad, elliptic-lanceolate, acuminate, glabrous above, more or less scurfy below, 9 veined beneath leaves with verrucose leaf-sheaths that blooms in summer and early fall on a short, terminal, arising through a group of ellipsoid bracts, single flowered inflorescence with large, fragrant, short-lived flowers.
This myrmecophilus species is often found in conjunction with ants and may benefit from their presence.
Similar to but it has the lip tube being strongly compressed, and a strong distinctive perfume scent, and the small basal calli as well as the color which is consistent throughout its range.
References W3 Tropicos, Kew Monocot list , IPNI ;
Lankester's Epidendra Website CR; *Beitr. Orchid.-K. C. Amer. 68. 1866.; Die Orchideen Schlechter 1915; The Orchids of Panama L.O. Williams & P Allen 1946; AOS Bulletin Vol 27 No 6 1958; AOS Bulletin Vol 27 No 8 1958 drawing fide; AOS Bulletin Vol 30 No 5 1961 photo fide; Encyclopedia of Cultivated Orchids Hawkes 1965 photo; AOS Bulletin Vol 38 No 1 1969 photo ok; Orquideologia Vol 15 #1 Luer & Escobar 1981The Manual Of Cultivated Orchid Species Bechtel, Cribb & Launert 1992 photo fide; AOS Bulletin Vol 70 No 8 2001 photo fide; Manual de Plantas de Costa Rica Vol 3 Hammel, Grayum, Herrera and Zamora 2003 drawing fide; Orquideología Vol 25 #2 2008 photo fide; AOS Bulletin vol 78 No 11 2009 photo fide; Orchid Species Of Peru Zelenko & Bermudez 2009 photo; Orchids of Costa Rica Vol 2 Morales 2009 photo fide; Pl. Syst. Evol. 303: 868 Baranow, Dudek & Szach. 2017; Orchid Genera and Species in Guatemala Archila, Szlachchetko, Chiron, Lipinska, Mystkowska and Bertolini 2018; Lankesteriana 19(1). 31 - 55 2019 photo fide
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