condition mean min max Sterile Leaflet 0.5256 0.0 1.5768 Fertile Leaflet with Sori 25.1599 17.4916 32.2917 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.16873266666666667 0.0 0.506198 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0