condition mean min max Sterile Leaflet 0.136833 0.105607 0.172604 Fertile Leaflet with Sori 2.02462 1.55453 2.6018 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.04565603333333333 0.0 0.081895 Petiole 0.019464366666666667 0.0 0.0583931 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0