condition mean min max Sterile Leaflet 0.0214405 0.0 0.0643215 Fertile Leaflet with Sori 2.247500666666667 0.896182 3.27109 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