Schizaeaceae
Image: Wikimedia Commons (See link for license)
Climbing fern family
Schizaeaceae
カニクサ科
Climbing or erect ferns with a distinctive morphology in which sporangia are arranged in a single row along the frond margins. In Japan, Lygodium japonicum is widely distributed from temperate to warm-temperate zones, twining around other plants. A prominent single longitudinal annulus on the sporangium is a primitive feature.
Key Characteristics
- ●Sporangia with a single longitudinal annulus (complete annulus)
- ●Sporangia arranged on marginal pinnules
- ●Climbing (Lygodium) or erect
- ●Homosporous
Phylogenetic Position
Vascular plants > Polypodiophyta > Polypodiopsida > Schizaeales > Schizaeaceae
Divergence Era
Jurassic to Cretaceous (ca. 150 million years ago–)
Representative Genera
カニクサ属（Lygodium）アネミア属（Anemia）
Related Evolution Events
- ・Establishment of sporangia with a complete annulus (retention of a primitive trait)
- ・Climbing habit enabling access to elevated positions (limited to Lygodium)
Plants in Climbing fern family on this site
AI-generated, needs verification