Hormidium is a group of orchids whose various species have been transferred to Encyclia, Epidendrum, Homalopetalum, Lepanthes, and Prosthechea.

Hormidium can also refer to:

• A genus of algae, an illegitimate name whose application caused confusion, now included in the Prasiolaceae
  • Klebsormidium, a genus of filamentous charophyte green algae
• Epidendrum subg. Hormidium, a subgenus of Epidendrum

See also

• Homidium or Ethidium bromide
• Horminum, a genus of flowering plants in the family Lamiaceae

Topics referred to by the same term

This disambiguation page lists articles about distinct genera with the same name.
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