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Fern Traits
color of petiole
brown
reddish
tan
green
sori position
marginal
along veins or midrib
shape of sori
much longer than broad
about as broad as long
Flora of Erie Islands
Stuckey, R. L. and Duncan, T.
Species Count: 2
Dryopteridaceae
Dryopteris thelypteris
Pteridaceae
Pellaea glabella