condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.09355599999999999 0.0 0.280668 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 2.035413333333333 0.0 6.10624 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0