condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 2.688034666666667 0.0 7.8995 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.07188966666666667 0.0 0.215669 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0