condition mean min max Sterile Leaflet 0.8431196666666666 0.591854 1.14844 Fertile Leaflet with Sori 0.360382 0.0 0.571464 Primary Rachis 1.275307 0.547111 1.76021 Secondary Rachis 1.109415 0.27357 2.33191 Petiole 3.51201 1.82489 4.42434 Crozier 4.768326666666667 1.69461 6.69062 Root 0.273941 0.253799 0.291634