condition mean min max Sterile Leaflet 3.5204 2.05171 5.98873 Fertile Leaflet with Sori 0.22504833333333332 0.0 0.496818 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.14135433333333333 0.0 0.424063 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0