Cheiropleuriaceae
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Cheiropleuria family
Cheiropleuriaceae
ในใธใใใใ็ง
A small family consisting of the single genus Cheiropleuria, distributed in tropical and subtropical East Asia. Characterized by large simple leaves with irregular dichotomous venation and sporangia scattered uniformly across the entire abaxial surface. Native to Okinawa and Ogasawara in Japan.
Key Characteristics
- โSimple leaves with dichotomous venation
- โSporangia scattered uniformly across the entire abaxial surface (not forming discrete sori)
- โExindusiate (without indusia)
- โEvergreen perennials, epiphytic or epilithic
Phylogenetic Position
Vascular plants > Polypodiophyta > Polypodiopsida > Polypodiales > Cheiropleuriaceae
Divergence Era
Cretaceous (approx. 100 million years ago onward)
Representative Genera
ใญใธใใชใทใๅฑ๏ผCheiropleuria๏ผ
Related Evolution Events
- ใปRetention of conserved venation patterns as an early-diverging lineage within Polypodiales
- ใปPreservation of a primitive sporangial arrangement with sporangia scattered across the entire leaf undersurface
Plants in Cheiropleuria family on this site
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