Your help is appreciated. We depend on donations to help keep this site free and up to date for you. Can you please help us?


Native Plant Trust: Go Botany Discover thousands of New England plants


See list of 2 genera in this family

References: Clausen (1938), Wagner and Wagner (1993), Gilman (2002).

  • 1a. Trophophores (i.e., vegetative portion of leaf blades) simple, entire; venation reticulate; sporangia borne on a compact, linear sporophore
  • 1b. Trophophores lobed or compound (rarely simple in B. tenebrosum), the ultimate segments entire or toothed [Figs. 26,28]; venation forking; sporangia borne on pinnately branched sporophores [Figs. 28,29]

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