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See list of 4 species in this genus

Reference: Windham (1993b).

  • 1a. Petioles not articulated, therefore the persistent petiole bases of various lengths; leafules dentate with pointed teeth; petiole scales bicolored, with a dark central region; leaf blades (8–) 20–60 cm long
  • 1b. Petioles articulated, therefore the persistent petiole bases mostly of equal length, the articulation point noticeable as a slightly swollen node; leafules entire to crenate; petiole scales concolored; leaf blades 2.5–22 (–25) cm long
    • 2a. Plants glabrous, with sessile glands; basal leaflets flabellate; leaf blades 1–1.5 cm wide; petioles green to light brown
    • 2b. Plants with hairs, scales, and/or stalked glands; basal leaflets narrowly ovate to deltate; leaf blades 1–3 cm wide; petioles brown to dark brown
      • 3a. Leaflets glabrous or nearly so on the abaxial surface (though scales may be present on the rachis and costae), the larger leaflets with 2 or 3 pairs of leafules; indusium composed of few filaments
      • 3b. Leaflets with scales on the abaxial surface, the larger leaflets with 4–7 pairs of leafules; indusium composed of many filaments

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 Show photos of:   Each photo represents one species in this genus.