condition mean min max Sterile Leaflet 0.07013 0.0 0.21039 Fertile Leaflet with Sori 2.019969 0.972967 2.96173 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.23001366666666667 0.0 0.690041 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0