condition mean min max Sterile Leaflet 4.5087806666666665 0.945572 9.69668 Fertile Leaflet with Sori 4.733863333333334 2.92993 6.82757 Primary Rachis 0.609156 0.314999 1.09972 Secondary Rachis 3.79279 2.47897 4.4575 Petiole 0.0873661 0.0 0.176139 Crozier 0.0 0.0 0.0 Root 0.371775 0.319319 0.426059