condition mean min max Sterile Leaflet 2.17863 0.0 4.74512 Fertile Leaflet with Sori 0.9077540000000001 0.145633 2.43183 Primary Rachis 0.31404733333333334 0.0 0.800368 Petiole 0.045883 0.0 0.137649 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0