condition mean min max Sterile Leaflet 0.19622966666666666 0.0 0.399924 Fertile Leaflet with Sori 0.865474 0.654782 1.21598 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.46202766666666667 0.204331 0.619425 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 17.22002 4.78506 31.5132