condition mean min max Sterile Leaflet 0.3353966666666666 0.0 1.00619 Fertile Leaflet with Sori 4.216586666666667 1.08944 8.74802 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