condition mean min max Sterile Leaflet 3.878311666666667 0.152874 10.5457 Fertile Leaflet with Sori 0.0724575 0.0 0.149497 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