condition mean min max Sterile Leaflet 0.18225063333333333 0.0738559 0.236944 Fertile Leaflet with Sori 4.575753333333333 3.96382 4.93274 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