condition mean min max Sterile Leaflet 1.161971 0.884953 1.30817 Fertile Leaflet with Sori 11.376646666666666 2.48673 25.8328 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.30066733333333334 0.0 0.789637 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0