Pleurothallis madisonii Luer 1979 SUBGENUS Acianthera SECTION Brachystachyae Lindl. 1859

Drawing by © Carl Luer and The Swiss Orchid Foundation at the Jany Renz Herbaria Website

Common Name or Meaning Madison's Pleurothallis [American discoverer of species]

Flower Size .2" [5 mm]

Found in Valle de Cauca department of Colombia and Carchi province of Ecuador in wet forests at elevations around 1600 to 2100 meters as a small to medium sized, cool to cold growing epiphyte with slender, ascending to erect, terete below, slightly compressed above ramicauls witha tubular sheaths in the lower quarter 1 to 2 others at the base and carrying a single, apical, erect, coriaceous, elliptical, obtuse, shortly acuminate, rounded and decurrent to the ramicaul base leaf that blooms in the fall on a congested, distichous, 2" [5 cm] long including the .2 to .4" [.5 to 1 cm] long peduncle, simultaneously several flowered inflorescence arising through a spathe at the apex of the ramicaul and has an infundibular floral bract.

Synonyms Acianthera madisonii (Luer) Pridgeon & M.W.Chase 2001

References W3 Tropicos, Kew Monocot list , IPNI ; Icones Pleurothallidinarum Vol III Luer 1986; Icones Pleurothallidinarum Vol XXVI Luer 2004 drawing fide; Pleurothallids Neotropical Jewels Vol 1 Karremans & Viera 2020 as Acianthera madisonii photo fide; Orquideas de Farallones de Cali Galindo-Tarazona, Haelterman, Zuluaga Trochez and Sebastian Moreno 2020 as Acianthera madisonii photo fide

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