condition mean min max Sterile Leaflet 0.2501836666666667 0.0 0.472806 Fertile Leaflet with Sori 3.19685 2.17625 4.29829 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0