condition mean min max Sterile Leaflet 3.22557 2.40222 3.98793 Mature Sterile Leaflet 4.1717933333333335 2.66169 5.553 Fertile Leaflet with Sori 4.43665 3.54632 5.36025 Petiole 3.70745 2.43129 5.79857 Crozier 4.379573333333333 2.9107 5.57706 Rhizome 2.5384813333333334 0.852924 4.68129 Stolon 2.146788 0.900514 3.60955 Stolon with Root 3.00161 2.15132 4.28161