condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 8.315426666666667 6.38843 9.90814 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.11933833333333334 0.0 0.358015 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0