condition mean min max Sterile Leaflet 2.5454533333333336 0.0 4.8768 Fertile Leaflet with Sori 0.5887233333333334 0.0 1.76617 Primary Rachis 0.239951 0.0 0.719853 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0