condition mean min max Sterile Leaflet 0.13747600000000001 0.0 0.412428 Fertile Leaflet with Sori 6.350158333333334 0.580095 16.4495 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