condition mean min max Sterile Leaflet 2.528373333333333 0.0 6.0074 Fertile Leaflet with Sori 0.15402000000000002 0.0 0.46206 Primary Rachis 0.03685666666666667 0.0 0.11057 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0