condition mean min max Sterile Leaflet 3.33527 0.0 5.85185 Fertile Leaflet with Sori 0.52781 0.0 0.942107 Primary Rachis 0.294001 0.0 0.628902 Petiole 0.7804146666666666 0.0 2.03726 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0