title: Oeosporangium pteridioides
text: # Oeosporangium pteridioides
  
  Oeosporangium pteridioides (with many synonyms, including Hemionitis pteridioides) is a species of fern in the family Pteridaceae. Its native distribution is Macaronesia, around the Mediterranean in Europe, North Africa and Western Asia, and into the Sahara.
  
  ## Subspecies
  
  As of January 2020, the Checklist of Ferns and Lycophytes of the World recognized three subspecies:
  
  * Oeosporangium pteridioides subsp. pteridioides
  * Oeosporangium pteridioides subsp. reichsteinii Fraser-Jenk. & Pariyar
  * Oeosporangium pteridioides subsp. acrosticum (Balb.) Fraser-Jenk. & Pariyar, sometimes treated as a separate species (Oeosporangium acrosticum or Hemionitis acrostica)
  