condition mean min max Sterile Leaflet 0.0621373 0.0 0.161634 Fertile Leaflet with Sori 17.571932333333333 0.713177 42.293 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.03439433333333333 0.0 0.103183 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0604958 0.0 0.0974975