condition mean min max Sterile Leaflet 0.19325023333333333 0.0 0.538227 Fertile Leaflet with Sori 13.97485 4.62985 22.8769 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.48535900000000004 0.213812 0.638793 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.125029 0.0 0.375087