Sigmatostalix amazonica Schltr. 1925 Photo by Ron Parsons

Plant and Inflorescence Photo courtesy of Maarten Sepp

to and EARLY

Common Name The Amazon Sigmatostalix

Flower Size 5/8"" [1.5 cm]

Found from French Guiana, Surinam, Venezuela, Colombia? Brazil, Bolivia?, and Peru in the lower reaches of wet montane forests as a small sized, hot to warm growing epiphyte at elevations of 100 to 1000 meters with an elliptic or obovate, lightly oblique, strongly compressed, ancipitous, yellow green pseudobulb with several pairs of basal distichous, imbricating sheath with the uppermost leaf bearing, and a single, apical, broadly lanceolate, acute, shortly conduplicate at the base leaf with a carinate midvein that blooms on an axillary, 4" [10 cm] long, arching , racemose panicles with ovate, acuminate, concave bracts all arising on a newly matured pseudobulb with the 8 to 10 branches, successively [20 or more] flowered and longer than the leaves all occuring in the winter and early spring.

Synonyms Oncidium amazonicum [Schlechter} Chase & NH Wms. 2008

References W3 Tropicos, Kew Monocot list , IPNI ; Venezuelan Orchids Vol 5 Dunsterville & Garay 1975 drawing fide; Orchids of Venezuela, An Illustrated Field Guide Vol 3 Dunsterville & Garay 1979 drawing fide; Icones Planetarum Tropicarum Plate 586 Dodson 1982 drawing fide; AOS Bulletin Vol 53 No 1 1984 photo; The Orchids of Surinam Werkhoven 1986 photo ok; Icones Orchidacearum Peruviarum Plate 183 Bennett & Christenson 1993 drawing fide; Native Colombian Orchids Vol 4 COS 1992 photo fide; Rudolf Schlechter Die Orchideen Lieferung 33-6 1997 drawing good; Orchids of Venezuela [An illustrated field guide] Vol. 3 Ramiro and Carnevali 2000 drawing fide; Flora of the Venezuelan Guayana Vol 7 Steyermark, Berry, Yatskievych and Holst 2003; Native Ecuadorian Orchids Vol 5 Dodson 2004 drawing/photo fide; Orquideologia Vol. 23 No 1 2004 photo; Orchid Species Culture Oncidium/Odontoglossum Alliance Bakers 2006; AOS Bulletin Vol 77 No 12 2008 as Oncidium amazonicum; Orchid Species Of Peru Zelenko & Bermudez 2009 photo fide

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