condition mean min max Sterile Leaflet 4.712 0.0 14.136 Fertile Leaflet with Sori 0.21633100000000002 0.0 0.648993 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.08589333333333334 0.0 0.25768 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0