condition mean min max Sterile Leaflet 1.6337466666666667 1.38633 2.01616 Fertile Leaflet with Sori 1.4323516666666667 0.0 3.36455 Primary Rachis 0.063674 0.0 0.191022 Secondary Rachis 0.9639540000000001 0.0 2.08503 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0