fern in the sky. clusters of sporangia on a fern. groupes de sporanges on fern leaves. reproduction of olypodiopsida or

abstract background backgrounds beaty botany bright circle clusters color copy detail dot ecology environment fern ferns flora foliage freshness garden green group groupes grow growth leaf leaves natural nature olypodiopsida organic outdoor pattern plant polypodiophyta polypodiopsida reproduction ripe season seed sky sorus space sperm sporanges sporangia sporangium spore stem structure summer texture vascular veins