condition mean min max Sterile Leaflet 0.8160233333333333 0.0 2.44807 Fertile Leaflet with Sori 1.9495300000000002 0.0 4.7582 Primary Rachis 1.900651 0.0 5.4405 Petiole 0.05241096666666666 0.0 0.0850736 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0