condition mean min max Sterile Leaflet 3.7387099999999998 2.97998 4.49939 Fertile Leaflet with Sori 3.4782366666666666 3.08165 4.2197 Primary Rachis 3.62709 2.90471 4.5331 Secondary Rachis 3.80553 3.44361 4.10185 Petiole 3.4735133333333335 3.02187 3.89743 Crozier 4.98605 4.4246 5.92305 Root 3.01886 1.80751 4.76203