condition mean min max Sterile Leaflet 1.1116439999999999 0.0 2.78651 Fertile Leaflet with Sori 0.07145066666666666 0.0 0.214352 Primary Rachis 4.2279523333333335 0.419237 9.26049 Petiole 0.304858 0.0 0.514536 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0