condition mean min max Sterile Leaflet 0.0 0.0 0.0 Mature Sterile Leaflet 4.4035 0.0 13.2105 Fertile Leaflet with Sori 2.60046 1.25029 4.41803 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Stolon 0.0 0.0 0.0 Stolon with Root 0.0 0.0 0.0