condition mean min max Sterile Leaflet 3.3492766666666665 1.77239 4.94253 Fertile Leaflet with Sori 2.713521 0.767533 4.81413 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 1.304641 0.828163 1.82124 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0