condition mean min max Sterile Leaflet 0.022528466666666667 0.0 0.0675854 Fertile Leaflet with Sori 22.96308666666667 3.28413 61.9534 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