condition mean min max Sterile Leaflet 0.052013333333333335 0.0 0.15604 Fertile Leaflet with Sori 2.259773 0.294076 6.00141 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0