Bletia keinastii
to
Common Name Keinast's Bletia
A western Mexican terrestrial species that grows cool to cold and is found in soil of volcanic origin at elevations of 1500 to 2300 meters and blooms on a basal, erect, racemose, several flowered inflorescence.
A well represented species in cultivation that to my knowledge has never been described.
Most likely this species is B parkinsonii but I cannot be sure as the references are ambiguous. I await better references.