condition mean min max Sterile Leaflet 4.253613333333334 2.39164 7.44639 Fertile Leaflet with Sori 3.4522266666666663 1.17883 6.80674 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.067081 0.0 0.201243 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0