Pleurothallis cornualis Luer 1976 SUBGENUS Pleurothallis SECTION Pleurothallis SUBSECTION Macrophyllae-Racemosae [Lindl] Luer 1986 Drawing by Carl Luer and The Swiss Orchid Foundation at the Jany Renz Herbaria Website


Common Name The Horned Pleurothallis [refers to the calli of the lip]

Flower Size .2" [5 mm]

Found in Colombia and Ecuador at elevations around 1500 meters as a small to medium sized, cool growing epiphyte with erect, slender ramicauls enveloped by a tubular sheath below the middle and 2 to 3 others at the base and carrying a single, apical, erect, coriaceous, elliptical-ovate, acute, acuminate, broadly cuneate to rounded below into the sessile base leaf that blooms in the late summer and early fall on an arching, 4 to 4.8" [10 to 12 cm] long, including the 2" [5 cm] long, peduncle, lax, few flowered inflorescence arising through a spathe at the base of the leaf with a infundibular floral bract and carrying non-resupinate flowers.

"Known only from the original collection. It is characterized by the lax drooping raceme of a few, relatively large, purple spotted flowers. The middle sepal and synsepal are acute, the petals lacerate and the lip is ovate with a pair of horn-like calli at the base. They are similar to the calli seen on the lip of P archidonae." Carl Luer


References W3 Tropicos, Kew Monocot list , IPNI ; Icones Plantarum Tropicarum Plate 221 Dodson 1980 drawing fide; Icones Pleurothallidinarum III Luer 1986; Icones Pleurothallidinarum XVIII Luer 1999 drawing fide;