condition mean min max Sterile Leaflet 0.06463466666666666 0.0 0.193904 Fertile Leaflet with Sori 4.016753333333334 0.0 9.80798 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.7511760000000001 0.0 1.48422 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0