Sigmatostalix bicallosa Garay 1951 Photo courtesy of of Carlos Hajek and his Peruvian Orchid Page

Common Name The Two Callus Sigmatostalix

Flower Size 2/5" [1 cm]

Found in the Department of Junin, Peru at elevations around 1500 meters as a miniature to small sized, warm to cool growing epiphyte in cloud forests on coffee trees at elevations of 1200 to 2100 meters with an ovate-elliptic, compressed pseudobulb with several pairs of basal, distichous, imbricating, leaf bearing sheaths and a single, apical, narrowly elliptic-lanceolate, acuminate to the short, obliquely bilobed leaf with a conduplicate petiole, that blooms on an axillary, 7 1/5" to [18 cm] long, loosely several [5 to7], successively flowered inflorescence arising on a mature pseudobulb with a central narrow, triangular bract and floral bracts that are 1/2 the length of the ovary, all occuring in nature in the winter.

Synonyms Oncidium bicallosoides Chse & NH Wms. 2008

References W3 Tropicos, Kew Monocot list , IPNI ; Icones Orchidacearum Peruviarum Plate 184 Bennett & Christenson 1993 drawing fide; Orchid Species Culture Oncidium/Odontoglossum Alliance Bakers 2006; AOS Bulletin Vol 77 No 12 2008 as Oncidium bicallosoides; Mille et Une Mini Orchideees Roguenant 2009 photo fide;

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