Masdevallia ostaurina Luer 2004 SUBGENUS Masdevallia SECTION Minutae Rchb.f Ex Woolw. 1896
Photo by © Diego Bogarin and Epidendra Orchid Website
TYPE Drawing by Carl Luer
LATE 
EARLY 
Common Name The Mouth Of Bulls Masdevallia [refers to the location Boca del Toro]
Flower Size .8" [2 cm]
Found in Chiriqui province of Panama at elevations around 1900 to 2000 meters as a mini-miniature sized, cool growing, densely caespitose epiphyte with stout, erect ramicauls enveloped by 2 to 3, tubular sheaths and carrying a single, apical, erect, thickly coriaceous, obovate, obtuse, gradually narrowing below into the petiolate base leaf that blooms in the late fall and early winter on a slender, arising from low on the ramicaul, erect, purple spotted, 3.6" [9 cm] long, successively single, 2+ flowered inflorescence with a tubular, somewhat shorter than the pedicel floral bract.
" Similar to M floribunda but the large plant and broad, obtuse and thickly coriaceous leaves. The peduncle is purple spotted and erect bearing the flower below the tips of the leaves. An early bud of a successive flower is present in the floral bract. The sepals are connate into a sylindrical tube that is yellowish above with a stout, erect, yellow, purple spotted tail and purplish below with a pair of close, much shorter, similarily spotted tails. The marginal callus of the petals, the hallmark of the section, defines a concave, labelalr half above the basal third. An additional longitudianl; callus is present on the opposite half above the middle. The lip is oblong with the diagonal, superficial folds above the middle." Luer 2004
Synonyms Reichantha ostaurina (Luer) Luer 2006
References W3 Tropicos, Kew Monocot list , IPNI ; * Icones Pleurothallidinarum Vol XXVI Pleurothallis subgenus Acianthera and Three Allied subgenera, A Second Century of new Species of Stelis of Ecuador, Epibator, Ophidion and Zootrophion Luer 2004 drawing fide; A Treasure of Masdevallia Vol 28 Luer & Dalstroem 2006 watercolor fide; Icones Pleurothallidinarum Vol XXVIII Luer 2006 as Reichantha ostaurina; Orchids Masdevallia with its segregates including Dracula Zelenko 2014 photo fide; LANKESTERIANA 17(2) Bogarin, Oses & C M Sm. 2017 photo fide;
--------------------------------------------------------------------------------------------------------------------------
---------------------------------------------------------------------------------------------------
