condition mean min max Sterile Leaflet 3.500409 0.386327 6.71852 Fertile Leaflet with Sori 1.87718 0.0 3.43976 Primary Rachis 0.604276 0.0 1.42866 Secondary Rachis 1.3432433333333333 0.0 2.62328 Petiole 1.6483400000000001 0.0 2.95752 Crozier 0.587954 0.0 1.10002 Root 0.7867073333333333 0.0 1.99734