condition mean min max Sterile Leaflet 8.05441 0.0 14.6903 Fertile Leaflet with Sori 3.78081 0.0 7.83243 Primary Rachis 0.3070306666666667 0.0 0.567924 Petiole 0.11362 0.0 0.34086 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0