condition mean min max Sterile Leaflet 0.743689 0.0 2.0918 Fertile Leaflet with Sori 2.81119 1.05882 4.3479 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.18995 0.0 0.426807 Petiole 0.0 0.0 0.0 Crozier 0.050365 0.0 0.151095 Root 0.215038 0.0 0.470434