condition mean min max Sterile Leaflet 0.013181900000000002 0.0 0.0395457 Fertile Leaflet with Sori 1.7603143333333335 0.0 5.07042 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.26007066666666667 0.0 0.780212 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0