condition mean min max Sterile Leaflet 0.754508 0.325703 1.22435 Fertile Leaflet with Sori 0.6158466666666667 0.586749 0.645781 Primary Rachis 2.5981266666666665 1.38475 4.37981 Secondary Rachis 1.603713 0.646769 3.05248 Petiole 2.39646 1.08933 4.87733 Crozier 2.045867 0.768901 3.0996 Root 0.3669117 0.0 1.0075