condition mean min max Sterile Leaflet 0.45082900000000004 0.0 1.07315 Fertile Leaflet with Sori 2.237978666666667 0.358746 5.29834 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.4486826666666667 0.171781 0.805145 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0