condition mean min max Sterile Leaflet 4.54192 3.71768 5.02723 Fertile Leaflet with Sori 4.92174 4.81096 5.05095 Primary Rachis 3.58458 3.33497 3.83174 Petiole 3.90238 3.64556 4.27544 Crozier 4.784356666666667 4.14663 5.45225 Rhizome 2.11427 1.50521 2.92629 Root 1.532474 0.498872 2.54107