Myoxanthus colothrix (Luer) Luer 1982 SUBGENUS Myoxanthus SECTION Myoxanthus Luer 1992
Photo by G. Rojas-Alvarado and A taxonomic synopsis and morphological characterization of Myoxanthus (Orchidaceae: Pleurothallidinae) Gustavo Rojas-Alvarado, Mario A. Blanco, A. P. Karremans 2021
TYPE Drawing by Carl Luer
Common Name or Meaning The Short Haired Myoxanthus
Flower Size .4" [1 cm]
Found in Costa Rica, Panama and Ecuador in cloud forests at elevations of 1000 to 1700 meters as a small sized, cool growing, repent epiphyte with slender, erect ramicauls enveloped by 4 to 5 tubular sheaths with scaly trichomes and carrying a single, apical, erect, coriaceous, narrowly elliptical-ovate, acute, narrowly cuneate below into the conduplicate, petiolate base leaf that blooms in the summer and fall on a fascile of congested, .1 to .2" [2 to 5 mm] long, successively single flowered inflorescence arising at the apex of the ramicaul enveloped completely by pubescent bracts and has red-pubescent, infundibular, slightly shorter than the ovary floral bracts.
" Myoxanthus colothrix is morphologically similar to M. parahybunensis, but the sheaths on the basal half of the ramicauls are completely covered with trichomes vs. smooth, and it has a toothed white column vs. untoothed with purple wings and white oblong lip with a pair of conspicuous longitudinal keels emerging near the middle on the disc vs. subpandurate lip with purple margins and microscopical keels on the disc." Rojas-Alvarado, Blanco, & Karremans 2021
Synonyms *Pleurothallis colothrix Luer 1981
References W3 Tropicos, Kew Monocot list , IPNI ; Icones Pleurothallidinarum Vol IX Systematics of Myoxanthus Luer 1992 drawing fide; Native Ecuadorian Orchids Vol 3 Dodson 2002 Drawing fide; Manual de Plantas de Costa Rica Vol 3 Hammel, Grayum, Herrera and Zamora 2003; Pleurothallids Neotropical Jewels Vol 1 Karremans & Viera 2020 photo fide; A taxonomic synopsis and morphological characterization of Myoxanthus (Orchidaceae: Pleurothallidinae) Gustavo Rojas-Alvarado, Mario A. Blanco, A. P. Karremans 2021 photo fide
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