condition mean min max Sterile Leaflet 0.8383143333333333 0.531871 1.35604 Fertile Leaflet with Sori 2.493136333333333 0.332809 3.65866 Primary Rachis 0.461781 0.0 1.22218 Secondary Rachis 0.793381 0.107703 1.21202 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0