condition mean min max Sterile Leaflet 0.10348566666666666 0.0 0.310457 Fertile Leaflet with Sori 2.3764600000000002 0.0 7.12938 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 1.2850066666666666 0.0 3.85502 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0