condition mean min max Sterile Leaflet 2.586113333333333 0.0 7.39807 Fertile Leaflet with Sori 0.38149000000000005 0.0 1.14447 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.13922633333333334 0.0 0.417679 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0