condition mean min max Sterile Leaflet 3.5438180000000004 0.0 9.92594 Fertile Leaflet with Sori 1.7751466666666667 0.344174 4.29285 Primary Rachis 6.120232666666667 0.0 18.024 Petiole 0.108839 0.0 0.326517 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0