condition mean min max Sterile Leaflet 1.6634566666666668 1.05814 2.23258 Fertile Leaflet with Sori 4.343552666666667 0.679838 6.75056 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0