condition mean min max Sterile Leaflet 0.718095 0.111691 1.87569 Fertile Leaflet with Sori 2.6850566666666666 0.0 5.98272 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.17199406666666667 0.0 0.462504 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0