condition mean min max Sterile Leaflet 0.14744353333333335 0.0 0.349428 Fertile Leaflet with Sori 2.657717 0.813161 5.93272 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.06156693333333333 0.0 0.096164 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.03506 0.0 0.10518