condition mean min max Sterile Leaflet 0.014864633333333334 0.0 0.0445939 Fertile Leaflet with Sori 0.0 0.0 0.0 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 2.8918013333333334 0.0 8.26731