condition mean min max Sterile Leaflet 3.9212366666666667 1.08917 7.49389 Fertile Leaflet with Sori 1.777997 0.337021 3.88478 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 1.3021248666666667 0.0 3.83097 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0