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See list of 2 species in this genus

Hybrids in this genus, which are likely underreported, often possess two types of spores—smaller, black, malformed spores and larger, brown, round spores. Hybrids are not confined 
to areas of parental sympatry. References: Pryer (1993), Pryer and Haufler (1993).

  • 1a. Leaf stipitate-glandular on petiole, rachis, and abaxial blade surface; basal leaflets and basiscopic leafules curving toward apex of plant [Fig. 39]
  • 1b. Leaf essentially glabrous; basal leaflets and basiscopic leafules spreading, not curving toward plant apex (except in some epipetric populations)

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