condition mean min max Sterile Leaflet 1.1313833333333332 0.0 3.39415 Fertile Leaflet with Sori 2.164823333333333 0.0 4.49069 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