condition mean min max Sterile Leaflet 4.19709 1.45004 6.78267 Fertile Leaflet with Sori 1.6517066666666667 0.37792 2.83463 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.474562 0.296142 0.680794 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0