condition mean min max Sterile Leaflet 0.6589183333333333 0.150545 1.61763 Fertile Leaflet with Sori 2.248711 0.459853 3.87174 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