condition mean min max Sterile Leaflet 0.344929 0.0 0.641315 Fertile Leaflet with Sori 1.075922 0.41481 2.37981 Primary Rachis 0.06811733333333334 0.0 0.204352 Secondary Rachis 2.9609906666666665 0.841162 5.87834 Petiole 0.168129 0.0 0.504387 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0