condition mean min max Sterile Leaflet 0.53516 0.0 1.35657 Fertile Leaflet with Sori 9.751180666666666 0.0 29.0039 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.2849116666666667 0.0 0.854735 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0