condition mean min max Sterile Leaflet 0.04358533333333334 0.0 0.130756 Fertile Leaflet with Sori 6.991830333333334 0.601971 18.5471 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.144465 0.0 0.253708 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0