condition mean min max Sterile Leaflet 0.14008663333333335 0.0360569 0.231604 Fertile Leaflet with Sori 3.361106 0.172098 8.86224 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.13663633333333333 0.0 0.409909 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0