condition mean min max Sterile Leaflet 2.7068933333333334 0.0 8.12068 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Petiole 0.065656 0.0 0.196968 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0