condition mean min max Sterile Leaflet 1.8795256666666667 0.738717 3.95415 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.015573700000000001 0.0 0.0467211 Crozier 0.0 0.0 0.0 Root 0.015930366666666668 0.0 0.0477911