condition mean min max Sterile Leaflet 2.994409333333333 0.0 8.27573 Fertile Leaflet with Sori 1.84339 0.0 4.50832 Primary Rachis 1.107819 0.0 3.03175 Petiole 0.09543800000000001 0.0 0.286314 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0