condition mean min max Sterile Leaflet 0.17045066666666667 0.0 0.511352 Fertile Leaflet with Sori 4.635427666666667 0.624373 7.61878 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 0.0188357 0.0 0.0565071