condition mean min max Sterile Leaflet 0.05763746666666667 0.0 0.112753 Fertile Leaflet with Sori 6.854126666666667 2.31678 11.3959 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.062352899999999996 0.0 0.124983 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0