Myoxanthus xiphion Luer 1982

52. Myoxanthus xiphion Luer (1982a: 51). (Fig. 18L) TYPE:— Ecuador. Napo: epiphytic in wet forest south of Baeza, 1500 m, 11 Aug 1978, Luer, Luer, Andreetta & Hirtz 3267 (holotype,: SEL!). Distribution: — Ecuador, Colombia, Bolivia and Peru. Notes:— This species is similar to M. parvilabius in having lateral sepals connate at the base forming a flat synsepal and falcate petals. However, M. xiphion is distinguished by the caespitose habit vs. proliferous, yellowish flowers vs. purplish and subquadrate base of the petals, trilobed just above the middle and abruptly contracted into a falcate middle lobe vs. obovate base contracted into a slender falcate apex.Published as part of Rojas-Alvarado, Gustavo, Blanco, Mario A. & Karremans, Adam P., 2021, A taxonomic synopsis and morphological characterization of Myoxanthus (Orchidaceae: Pleurothallidinae), pp. 211-258 in Phytotaxa 507 (3) on page 252, DOI: 10.11646/phytotaxa.507.3.1, http://zenodo.org/record/542572