condition mean min max Sterile Leaflet 0.15350433333333333 0.0 0.460513 Fertile Leaflet with Sori 1.9447119999999998 0.48937 4.83196 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 2.1889083333333335 0.527822 5.19488 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0