condition mean min max Sterile Leaflet 0.9071283333333333 0.0 2.06397 Fertile Leaflet with Sori 7.358623333333334 0.0 18.3229 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.52864 0.0 1.58592 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0