condition mean min max Sterile Leaflet 1.8253473333333332 0.290357 4.53548 Fertile Leaflet with Sori 5.706436333333333 0.0 16.2653 Primary Rachis 2.44225 0.0 7.32675 Petiole 1.903039 0.0 5.40445 Root 0.0 0.0 0.0