condition mean min max Sterile Leaflet 2.295186666666667 0.0 5.72822 Fertile Leaflet with Sori 1.7448933333333334 0.0 3.00483 Primary Rachis 0.0 0.0 0.0 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