condition mean min max Sterile Leaflet 0.25684653333333335 0.0 0.67974 Fertile Leaflet with Sori 18.01215 9.30015 27.8089 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.40195333333333333 0.0 1.20586 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0