condition mean min max Sterile Leaflet 1.3697333333333332 0.0 2.22802 Fertile Leaflet with Sori 12.46673 6.43049 20.1077 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0