condition mean min max Sterile Leaflet 0.468262 0.0 0.866381 Fertile Leaflet with Sori 2.702612333333333 0.384768 7.15978 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.13012223333333334 0.0330837 0.233544 Petiole 0.0268307 0.0 0.0804921 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0