Vegetation heterosporous; rhizomes extensive-creeping, slender, glabrous or hairy; leaves with two or 4 leaflets in the petiole tip or lacking a blade altogether, the venation of leaflets dichotomously branching; sori enclosed in stalked bean-shaped sporocarps (really modified leaves), these quite elaborate internally, Just about every made up of both equally https://ballonarch54219.shivawiki.com/7569523/balloon_arch_frame_an_overview