condition mean min max Sterile Leaflet 2.4736949999999998 0.497975 5.37034 Fertile Leaflet with Sori 2.43865 1.64975 3.92246 Petiole 0.0 0.0 0.0 Crozier 0.3789833333333333 0.0 1.13695 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0