condition mean min max Sterile Leaflet 0.15522866666666665 0.0 0.465686 Fertile Leaflet with Sori 2.55718 0.52675 4.14499 Primary Rachis 0.027344566666666667 0.0 0.0820337 Secondary Rachis 1.19975 0.316706 2.50326 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0