- 399-400 E. xylostachyum Lindl.(1845) on page 400 "Folia plana,
bractei spathaceis saepius ancipitibus" H. G. Reichenbach, "ORCHIDES" in Dr. Carl Müller...
- (published as "Planifolia spathacea" with the
diagnosis "Folia plana,
bracteis spathaceis saepius ancipitibus"), with
large floral bracts E. subsect. Umbellata...