condition mean min max Sterile Leaflet 2.2803666666666667 1.99114 2.42505 Fertile Leaflet with Sori 1.99515 1.19719 2.42906 Primary Rachis 3.24432 2.93816 3.50114 Secondary Rachis 3.70878 3.52546 4.00984 Petiole 4.55983 4.04353 5.37816 Crozier 4.59516 3.73229 6.20554 Root 5.04605 4.74593 5.44241