condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 9.814736666666667 1.11342 27.1605 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.022745766666666667 0.0 0.0682373 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0