Crops heterosporous; rhizomes long-creeping, slender, glabrous or hairy; leaves with 2 or 4 leaflets on the petiole suggestion or missing a blade completely, the venation of leaflets dichotomously branching; sori enclosed in stalked bean-formed sporocarps (extremely modified leaves), these really advanced internally, each containing equally megasporangia and microsporangia; three genera https://charliejsahn.pennywiki.com/4881201/rumored_buzz_on_ballon_arch