condition mean min max Sterile Leaflet 1.8651836666666666 0.496041 2.79613 Fertile Leaflet with Sori 0.833368 0.429728 1.07688 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.10308133333333334 0.0 0.309244 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.142051 0.0 0.426153