condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 5.375393333333333 0.0 15.1808 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.7516533333333334 0.0 2.25496 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0