condition mean min max Sterile Leaflet 0.43449333333333334 0.0 1.30348 Fertile Leaflet with Sori 9.65061 1.26354 21.3438 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.4812433333333333 0.0 1.44373 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0