condition mean min max Sterile Leaflet 2.9424116666666666 0.0 7.84284 Fertile Leaflet with Sori 1.1412120000000001 0.565726 1.69731 Primary Rachis 1.783332 0.458769 4.04592 Petiole 1.055909 0.0 2.35033 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0