condition mean min max Sterile Leaflet 2.495112 0.530569 5.995 Fertile Leaflet with Sori 0.30179416666666664 0.0 0.812132 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.4389533333333333 0.0 1.31686 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0