condition mean min max Sterile Leaflet 2.52914 0.0 6.02671 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.19621033333333332 0.0 0.348709 Petiole 0.04115033333333334 0.0 0.123451 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.048513 0.0 0.145539