condition mean min max Sterile Leaflet 0.242343 0.0 0.727029 Fertile Leaflet with Sori 2.75842 1.03743 4.53075 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