condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.5948556666666667 0.0 1.14107 Secondary Rachis 0.35193366666666664 0.0 0.746184 Petiole 0.313975 0.0 0.941925 Crozier 0.129803 0.0 0.389409 Root 11.041549999999999 5.41186 19.9225