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Thelypteridaceae Habit: Plants generally in soil; rhizome short- to long-creeping, prostrate [to erect, trunk-like], scales generally hairy, +- brown. Leaf: stipe ×-section at base with 2 crescent-shaped vascular strands fusing into 1 U-shaped strand distally; blade 1[3]-pinnate [or entire], generally with needle-like, clear hairs on axes and/or between veins; rachis. Sporangia: sori on veins, generally round; indusia reniform or round-reniform [0]; stalk cells in 3 rows; spores generally elliptic, scar generally linear. Genera In Family: 37 genera, +- 1200 species: worldwide, especially tropics; several cultivated. Jepson eFlora Author: Susan Fawcett, John C. Game, Alan R. Smith & Thomas Lemieux Scientific Editor: Alan R. Smith, Bruce G. Baldwin & Thomas J. Rosatti. Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) Key to Thelypteridaceae Previous taxon: Salvinia oblongifolia Next taxon: Amauropelta |