condition mean min max Sterile Leaflet 0.23071 0.0 0.69213 Fertile Leaflet with Sori 11.853200000000001 0.0 35.5596 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