condition mean min max Sterile Leaflet 0.19817366666666666 0.0 0.305315 Fertile Leaflet with Sori 1.9927913333333334 0.267034 3.35413 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