condition mean min max Sterile Leaflet 4.9516 0.0 12.9456 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.059362 0.0 0.178086 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.41305 0.0 1.23915