condition mean min max Sterile Leaflet 0.7482206666666666 0.156278 1.86907 Fertile Leaflet with Sori 5.290195 0.788955 8.86956 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.345103 0.226138 0.483372 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0391632 0.0 0.0820985