condition mean min max Sterile Leaflet 6.798389 0.0 19.9157 Fertile Leaflet with Sori 1.3350915333333333 0.0469326 3.67477 Primary Rachis 0.12435446666666666 0.0 0.328245 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