condition mean min max Sterile Leaflet 0.18684566666666666 0.0 0.392646 Fertile Leaflet with Sori 4.7944 0.0 14.3832 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 0.0982 0.0 0.189327