condition mean min max Sterile Leaflet 3.52669 2.37565 4.49446 Fertile Leaflet with Sori 3.0542833333333332 2.09045 3.63168 Primary Rachis 3.6244400000000003 3.12344 4.59597 Secondary Rachis 3.101113333333333 2.85828 3.40026 Petiole 4.79958 3.57512 6.25506 Crozier 5.890253333333333 5.14938 6.52808 Root 4.99648 4.49327 5.3094