condition mean min max Sterile Leaflet 0.008145766666666667 0.0 0.0244373 Fertile Leaflet with Sori 4.007313333333333 3.08419 5.40165 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0498766 0.0 0.0948925 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.026321 0.0 0.0444868