condition mean min max Sterile Leaflet 0.770681 0.300781 1.36146 Fertile Leaflet with Sori 8.39838 1.68099 19.9941 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.38788333333333336 0.0 1.16365 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0