condition mean min max Sterile Leaflet 1.03166 0.0 1.89774 Fertile Leaflet with Sori 3.0589133333333334 0.0 9.17674 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.23864833333333335 0.0 0.585084 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0