Lindsaeaceae
Clades: Polypodiales; Polypodiidae; Pteridophyta; Plants.
Genera: 6 or 7; ± 220 species.
Region: pantropical; eastern Asia, New Zealand, South America.
Region: pantropical
Botany
Root: rhizomes,short to long creeping, with nonclathrate scales or uniseriate hairs.
Leaves: blades pinnate, tripinnate or more divided; veins usually free.
Sori: marginal or submarginal; indusia open towards margin, sometimes attached at sides, or covered by the reflexed segment margin.
Taxonomy
For more than a century, Lindsaeaceae were considered part of the Davalliaceae. Then Lindsaeaceae began to be transferred to the Dennstaedtiaceae. Molecular data supported the separation of Lindsaeaceae into its own family, among the most basal of the families in the order Polypodiales.
Lindsaeaceae froms a monophyletic clade with the small families Cystodiaceae and Lonchitidaceae, named Lindsaeineae. when the small family Saccolomataceae is added the clade is still monophyletic.
Genera
• Saccolomataceae: 1 genus, Saccoloma; ± 18 species.
Ferns, terrestrial; rhizomes short-creeping to erect and trunk-like; petioles each with an omega-shaped vascular strand; blades pinnate to decompound and lacking articulate hairs; veins free; sori terminal on the veins; indusia pouch- or cup-shaped.
• Cystodiaceae: 1 species, Cystodium sorbifolium.
• Lonchitidaceae: 1genus, Lonchitis; 2 species.
• Lindsaeaceae: 7 genera,: ± 234 species.