condition mean min max Sterile Leaflet 1.664147 0.864861 2.74332 Fertile Leaflet with Sori 1.0321566666666668 0.0 2.5005 Primary Rachis 0.065709 0.0 0.197127 Secondary Rachis 0.63074 0.0 1.89222 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0