Shoestring fern family
Vittariaceae

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Shoestring fern family

Vittariaceae

シシラン科

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Ferns characterized by elongated, strap-shaped simple fronds and sori arranged in grooves near the frond margins. Epiphytic on tree trunks and rocks in tropical to subtropical regions. In Japan, Vittaria species occur in the Nansei Islands and southern Kyushu.

Key Characteristics

  • Simple fronds, strap-shaped to linear (elongated)
  • Sori arranged in grooves (commissures) along the frond margins
  • Indusia absent
  • Epiphytic (on tree trunks and rock faces)

Phylogenetic Position

Vascular plants > Polypodiophyta > Polypodiopsida > Polypodiales > Vittariaceae

Divergence Era

Cretaceous to Paleogene (ca. 80 million years ago–)

Representative Genera

シシラン属(Vittaria)アンタロフィス属(Antrophyum)

Related Evolution Events

  • Extreme simplification of fronds into strap-shaped simple leaves
  • Specialization for epiphytic life and range expansion through asexual reproduction of gametophytes
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Plants in Shoestring fern family on this site

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