condition mean min max Sterile Leaflet 5.320449666666667 0.620859 11.8817 Fertile Leaflet with Sori 7.948525 0.894475 12.02 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.8792203333333333 0.127046 1.87235 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.04662 0.0 0.13986