condition mean min max Sterile Leaflet 2.8769366666666665 1.56622 3.67918 Fertile Leaflet with Sori 3.23629 1.70627 4.40304 Primary Rachis 4.03401 2.04699 5.15411 Secondary Rachis 3.68633 2.32298 5.09592 Petiole 4.13511 2.33424 5.92623 Crozier 4.68955 3.21184 5.95154 Root 4.387356666666667 2.4639 6.22858