condition mean min max Sterile Leaflet 6.131293333333333 4.36229 7.04118 Fertile Leaflet with Sori 6.03493 4.45373 7.84514 Primary Rachis 6.23787 3.92819 8.02626 Secondary Rachis 6.239096666666667 3.60991 7.9155 Petiole 6.31062 3.77658 9.13527 Crozier 4.369673333333333 3.27481 5.54173 Root 4.43872 3.52459 5.84805