Myoxanthus serripetalus (Kraenzl.) Luer 1982 SUBGENUS Myoxanthus SECTION Antennella Luer 1992
Photo courtesy of Weyman Bussey, plant grown by Petite Plaisance Orchids
Photo by Andreas Philipp
Drawing by © Carl Luer
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Common Name The Sawtooth-Edged Petal Myoxanthus
Flower Size .8" [2 cm]
Found in Peru and Ecuador on the rocky slopes of the eastern Andes at elevations of 1000 to 3100 meters as a small to large sized, cool to cold growing terrestrial or epiphyte with erect, stout ramicauls enveloped by 4 to 6 long, tuublar, hispidulous sheaths and carrying a single, erect, thickly coriaceous, narrowly ovate, acute, cuneate below into the subpetiolate base leaf that blooms in the spring, summer and fall on a short, arising from the apex of the ramicual, peduncles minutely pubescent, a fascile of successively single, few flowered inflorescence with inflated, longer than the ovary floral bracts.
" This is the largest and most distinctive species of Myoxanthus. The flowers are dark red to dark purple with the column yellowish, long sepals (up to 3 cm) densely covered adaxially by circular to subcircular warts. The petals are obovate at the base, abruptly contracted above the middle, forming a narrow, oblong to linear apex. The lip is ovate to trilobate with lateral lobes erect bellow the middle and margins serrate to fimbriate and apex verrucose; it has a subclavate column and fimbriate anther cap. The most similar species is M. oliviae, which is distinguished by brownish to yellowish flowers and sagittate petal apex." Gustavo Rojas-Alvarado, Mario A. Blanco, A. P. Karremans 2021
Synonyms *Pleurothallis serripetala Kraenzl. 1916
References W3 Tropicos, Kew Monocot list , IPNI ; Icones Pleurothallidinarum Vol IX Systematics of Myoxanthus Luer 1992 Native Ecuadorian Orchids Vol 3 Dodson 2002 photo fide; Orchid Species of Peru Zelenko Bermudez 2009 photo fide; AOS Bulletin Vol 86 # 11 2017 photo fide; 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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