condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.8915693333333334 0.0 2.38167 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 2.4192033333333334 0.0 7.25761 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0