condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 3.68985 2.69441 4.46252 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0