condition mean min max Sterile Leaflet 0.3028733333333333 0.0 0.619414 Fertile Leaflet with Sori 8.343376666666666 2.60877 14.1433 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.307815 0.0 0.637406 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0