condition mean min max Sterile Leaflet 7.2726 0.0 21.8178 Fertile Leaflet with Sori 2.4165966666666665 0.0 5.20191 Primary Rachis 3.03175 0.0 9.09525 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0