Pleurothallis macrantha L.O. Williams 1941 SUBGENUS Dracontia Luer 1986

Photo by Eric Hunt, plant grown by San Francisco Conservatory of Flowers

Head-on View

Side View

Photos by Alfonso Doucette Copyright 2009, and His Flicker website


Common Name The Large Flowered Pleurothallis

Flower Size 1/2" [1.25 cm]

Found in Costa Rica and Panama at elevations of 1900 to 2600 meters in oak forests as a small sized, cool to cold growing terrestrial or epiphyte with stout, erect, ramicauls enveloped basally by 2 to 3 loose tubular sheaths and another below the middle carrying a single, apical, erect, coriaceous, elliptical, obtuse, sessile leaf that is cuneate below into the base that blooms in the summer and fall on a lightly flexuous, distantly few flowered, 6" [15 cm] long, racemose inflorescence with a thin floral bract

Distinguished by a few, large, purple mottled flowers in a loose, erect racemose inflorescence with large 3 veined, truncate petals and most important, the sides of the long midlobe of the lip involute to form a tube.

Synonyms Dracontia macrantha (L.O.Williams) Luer 2004; Stelis cylindrata Pridgeon & M.W. Chase 2002; Stelis macrantha (L.O. Williams) Pridgeon & M.W. Chase 2001

References W3 Tropicos, Kew Monocot list , IPNI ; The Orchids of Panama L.O. Williams & P Allen 1946; Icones Pleurothallidinarum Systematics of Pleurothallis Vol 3 Luer 1986; Orchids Travel By Air A Pictoral Safari Mulder, Mulder-Roelfsema and Schuiteman 1990 photo fide; Icones Pleurothallidinarum Vol XVII Systematics of Pleurothallis Section Abortivae, Truncatae, Subsection Acroniae, Subgenera Dracontia and Uncifera Luer 1998 drawing fide; Lindleyana Vol 16 No 4 2001 as Stelis macrantha; Manual de Plantas de Costa Rica Vol 3 Hammel, Grayum, Herrera and Zamora 2003; Icones Pleurothallidinarum Vol XXVI Luer 2004 as Dracontia macrantha; AOS Bulletin Vol 80 #9 2011 as Dracontia macrantha photo fide;