Myoxanthus trachychlamys (Schltr.) Luer (1982a: 51)

Rojas-Alvarado, Gustavo, Blanco, Mario A. & Karremans, Adam P., 2021, A taxonomic synopsis and morphological characterization of Myoxanthus (Orchidaceae: Pleurothallidinae), Phytotaxa 507 (3), pp. 211-258 : 250

49. Myoxanthus trachychlamys (Schltr.) Luer (1982a: 51) . (Fig. 18I)

Basionym: Pleurothallis trachychlamys Schlechter (1922: 23) . TYPE:— PANAMA. On foot-hill, east of Panama City, sea level, Powell 215 (holotype: B, destroyed, lectotype selected by Christenson

1991, AMES-23974; isolectotypes: AMES!, MO!, illustration of type AMES!). Heterotypic synonym: Pleurothallis cymbicalli Pabst

(1962: 268). TYPE:— Colombia. Amazonas , Schultes 8584 (holotype: IAN!; isotype: AMES).

Distribution: — Nicaragua, Costa Rica, Panama, Venezuela, Colombia, Ecuador, Peru and western Brazil.

Notes:— This widely distributed species is easily recognized among Myoxanthus species by the short, repent habit and yellow flowers. The only other species of the genus with a repent habit is M. hystrix , but its flowers are easily distinguished. Myoxanthus trachychlamys has yellow flowers with acute, oblong sepals and petals and oblong lip with a small, acute lobe on the lateral margins, whereas M. hystrix has yellowish flowers with purple veins, triangular petals with the base contracted and a subclavate apex, a small, oblong, recurved lip and column with broad wings.