Deyeuxia sodiroana Hack. ex Sodiro, Revista Col. Nac. Vicente Rocafuerte 12: 64. 1930. Calamagrostis sodiroana Hack., Anales Univ. Centr. Ecuador 3(25): 481. 1889, nom. nud.

Sylvester, Steven P., Soreng, Robert J., Bravo-Pedraza, William J., Cuta-Alarcon, Lia E., Giraldo-Canas, Diego, Aguilar-Cano, Jose & Peterson, Paul M., 2019, Paramo Calamagrostis s. l. (Poaceae): An updated list and key to the species known or likely to occur in paramos of NW South America and southern Central America including two new species, one new variety and five new records for Colombia, PhytoKeys 122, pp. 29-78 : 29

Deyeuxia sodiroana Hack. ex Sodiro, Revista Col. Nac. Vicente Rocafuerte 12: 64. 1930. Calamagrostis sodiroana Hack., Anales Univ. Centr. Ecuador 3(25): 481. 1889, nom. nud.

Type.

ECUADOR. Pichincha: Crece en los pajonales de los montes Pichincha, Chimborazo y El Altar [occid. M. Pichincha, Tablahuasi], Aug. 1888, L. Sodiro 25/10 (lectotype, designated here: W (W1916-0037841 [image!]); isolectotype: W (W1916-0037840 [image!])).

Comments.

Known only from the type collected in Ecuador, Calamagrostis sodiroana likely belongs to Deschampsia sensu Saarela et al. (2017), earlier to Calamagrostis sect. Deyeuxia subsect. Stylagrostis due to the rachilla internode being extended between the glumes and floret. This species bears affinities to Deschampsia parodiana and Deschampsia podophora due to its open panicle and straight awn that usually does not or only slightly surpasses the glumes and blades usually much shorter than the flowering culms ( Sodiro 1930: 70; Zulma Rúgolo de Agrasar, pers. comm.).