condition mean min max Sterile Leaflet 2.453937333333333 0.0 7.06323 Fertile Leaflet with Sori 0.065869 0.0 0.197607 Primary Rachis 0.0206002 0.0 0.0311137 Petiole 0.024801166666666666 0.0 0.0744035 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0