condition mean min max Sterile Leaflet 0.48201 0.0 1.44603 Fertile Leaflet with Sori 2.9373766666666667 0.0 8.81213 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