condition mean min max Sterile Leaflet 0.3226523333333333 0.0 0.790145 Fertile Leaflet with Sori 9.09699 0.0 21.8774 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.3381372 0.0 0.971573 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.019433033333333332 0.0 0.0582991