condition mean min max Sterile Leaflet 0.122489 0.0 0.367467 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.12363533333333333 0.0 0.370906 Rhizome 0.581188 0.150543 1.06067 Root 22.717566666666666 17.3747 29.4423