condition mean min max Sterile Leaflet 2.8341226666666666 0.212228 6.29181 Fertile Leaflet with Sori 0.193365 0.0 0.580095 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 0.080114 0.0 0.240342