condition mean min max Sterile Leaflet 3.8892 0.0 11.6676 Fertile Leaflet with Sori 0.311998 0.0 0.935994 Primary Rachis 0.158007 0.0 0.474021 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0