Pleurothallis truncata Lindl. 1837 SUBGENUS Pleurothallis SECTION Truncatae Luer 1986

Inflorescence

Photos by Jay Pfahl

Another Leaf and Flowers

Photo by Nick Doe

Flower Closeup

Photo by David Morris

Flower Closeup

Photo courtesy of Andy's Orchids Copyright 2002 All rights reserved.

Drawing

Drawing by Carl Luer

to and

Common Name The Truncated Pleurothallis

Flower Size 1/8" [.33 cm]

Found in Pichincha, Bolivar, Chimborazo, El Oro and Loja provinces of Ecuador at altitudes of 1700 to 3000 meters as a medium to large sized, caespitose, cool to cold growing epiphytic and sometime lithophytic species with elongate, terete, slender ramicauls enveloped basally by 2 close, tubular sheaths and another 2, one at the middle and the other below the middle and carrying a single, apical, elliptic, acute, attenuate to the short conduplicate base leaf that blooms in the winter and spring on a 1 or more, arising from a small spathe, apical, racemose, 3 to 4" [7.5 to 10 cm] long, successively several to many flowered inflorescence with a shorter than the ovary floral bract and holds the flowers tight against the mid leaf.

"Characterized by the more or less horizontal, ovate leaf with a longer, slender ramicaul with the raceme lying on the dorsum of the leaf. The flowers are spherical with the synsepal deeply concave. The lip within is also spherical with broadly rounded sides incurved to meet in the midline. The lip is open at the tip and with the bright orange color, it is no doubt hummingbird polinated." Luer 1998

Synonyms Acronia truncata (Lindl.) Luer 2009; Humboldtia truncata (Lindl.) Kuntze 1891; Humboltia truncata (Lindl.) Kuntze 1891; Orbis truncata (Lindl.) Luer 2005; Pleurothallis corazonica Schltr. 1915

References W3 Tropicos, Kew Monocot list , IPNI ;

* Companion Bot. Mag. 2: 355 Lindley 1837;

Bonplandia Rchb.f 1855;

Revis. Gen. Pl. 2: 668 Kuntze 1891 as Humboltia

Die Orchideen #7 25-28 tafel 8 Rudolph Schlechter 1971 as P ornata photo fide;

Icones Pleurothallidinarum Vol III Systematics of Pleurothallis Luer 1986

Icones Pleurothallidinarum Vol III Systematics of Pleurothallis Luer 1986 drawing fide;

Orchids Travel By Air A Pictoral Safari Mulder, Mulder-Roelfsema and Schuiteman 1990 photo fide;

AOS Bulletin Vol 62 No 1 1993 photo fide;

Icones Pleurothallidinarum Vol XVII Systematics of Subgen Pleuorthallis Sect Abortivae Sect Truncatae Sect Pleurothallis subsection Acroniae Subsect Pleurothallis Subgen Dracontia Subgen Uncifera Luer 1998

Icones Pleurothallidinarum Vol XVII Systematics of Subgen Pleuorthallis Sect Abortivae Sect Truncatae Sect Pleurothallis subsection Acroniae Subsect Pleurothallis Subgen Dracontia Subgen Uncifera Luer 1998 drawing fide;

Orchid Australia Vol 12 No 2 2000 photo;

Native Ecuadorian Orchids Vol 4 Dodson 2003 photo fide;

Icones Pleurothallidinarum Vol XXVII Dryadella and Acronia section Macrophyllae-Fasiculatae Luer 2005 as Orbis truncata;

AOS Bulletin Vol 77 No 3 2008 photo;

Mille et Une Mini Orchideees Roguenant 2009 photo fide;

Icones Pleurothallidinarum Vol XXX Lepanthes of Jamaica Systematics of Stelis of Ecuador 4 Luer 2009 as Acronia truncata;

AOS Bulletin Vol 80 #1 2011 photo fide;

Orchids of Tropical America Meisel 2014 photo fide;

AOS Bulletin Vol 88 #3 2019 photo fide;

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