condition mean min max Sterile Leaflet 0.970714 0.0 2.29623 Fertile Leaflet with Sori 0.7068496666666667 0.297847 1.52465 Primary Rachis 1.91573 0.0 5.74719 Petiole 0.38343333333333335 0.0 1.1503 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0