condition mean min max Sterile Leaflet 5.12169 0.72327 7.81211 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.062576 0.0 0.187728 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0