Question: These photos were taken SW of Albany NY near a waterfall. I think there are two species of fern here. …
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Question
These photos were taken SW of Albany NY near a waterfall. I think there are two species of fern here. I'm not sure, since the sori do not look identical. Thank You,
Answer
Dear Auntie, you've photographed two species of Dryoperis (wood fern). One of them is Dryopteris marginalis (marginal wood fern), which has sori on the margins of the leaf segments. The other I can't tell you which one because there isn't an image of the key characteristics I need (lowest leaflets). If you can get one of those images, I can help you further. Best wishes.
