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Acrosorus

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Kingdom
  
Plantae

Order
  
Polypodiales

Subfamily
  
Polypodioideae

Division
  
Pteridophyta

Family
  
Polypodiaceae

Rank
  
Genus

Class
  
Polypodiopsida/Pteridopsida (disputed)

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Acrosorus is a genus of grammitid ferns in the family Polypodiaceae, known from the Philippines, Malesia, Thailand, and the Pacific islands.

Contents

Description

Members of the genus bear a single sorus on each pinna of the divided leaf blade. The edges of the pinnae are rolled back towards their tips and cover the sori.

Taxonomy

The genus was created by Edwin Copeland in 1906, to accommodate a group of ferns similar to Prosaptia and until then classified in Davallia.

Currently recognized species in the genus are:

  • Acrosorus friderici-et-pauli (Christ) Copel. (includes Acrosorus exaltatus (Copel.) Copel.)
  • Acrosorus grammitidiphyllus (Copel.) Parris
  • Acrosorus merrillii Copel.
  • Acrosorus reineckei (Christ) Copel.
  • Acrosorus schlechteri (Christ) Christ
  • Acrosorus sclerophyllus (Alderw.) Parris
  • Acrosorus streptophyllus (Baker) Copel.
  • Acrosorus subtriangularis (Alderw.) Parris
  • Acrosorus symmetricus Copel.
  • Acrosorus triangularis Copel.

    • References

    Acrosorus Wikipedia
    (Text) CC BY-SA