condition mean min max Sterile Leaflet 0.2810223333333333 0.0 0.504919 Fertile Leaflet with Sori 3.6735 0.0 11.0205 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.28732033333333334 0.0 0.861961 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0