Within the Orchidaceae, Hormidium was originally a subgenus of the genus Epidendrum, but was later raised to a full genus. It is now considered not to be distinct from the genus Prosthechea, of which
Prosthechea pygmaea, formerly Hormidium pseudopygmaeum
In botany, the labellum is the part of the flower of an orchid or Canna, or other less-known genera, that serves to attract insects, which pollinate the flower, and acts as a landing platform for them
Showy lady slipper (Cypripedium reginae) has a pink labellum
Labellum of a Phalaenopsis hybrid
Orchis italica, the naked man orchid, showing a labellum divided into several lobes
Labellum of the orchid Laelia superbiens, showing five wavy ridges of the callus