condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 2.996827 0.965461 5.91775 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0252526 0.0 0.0757578 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0