condition mean min max Sterile Leaflet 17.765600000000003 0.0 35.5292 Fertile Leaflet with Sori 0.11217133333333333 0.0 0.336514 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.44414333333333333 0.0 1.33243 Petiole 0.59934 0.0 1.79802 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0