condition mean min max Sterile Leaflet 2.7956606666666666 0.0 7.90922 Fertile Leaflet with Sori 8.19831 3.34481 11.7454 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.4561906666666667 0.0 1.18656 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0