condition mean min max Sterile Leaflet 1.915766 0.527098 4.1944 Fertile Leaflet with Sori 1.1850336666666665 0.559156 2.25949 Primary Rachis 2.005698 0.451174 4.46834 Secondary Rachis 3.1816050000000002 0.702625 7.40767 Petiole 1.3106243333333332 0.373349 2.86013 Crozier 0.605638 0.347907 1.01215 Root 0.417281 0.298949 0.48293