condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 5.53677 3.79933 8.14278 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.039149333333333335 0.0 0.117448 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0