condition mean min max Sterile Leaflet 0.20811366666666667 0.0 0.485288 Fertile Leaflet with Sori 2.77599 1.60969 3.65259 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