condition mean min max Sterile Leaflet 12.763404999999999 0.0 37.8983 Fertile Leaflet with Sori 0.22582 0.0 0.67746 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.132744 0.0 0.398232 Petiole 0.06747666666666667 0.0 0.20243 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0