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Christian
Is this horsetail .Found at the bottom of cliffs at scarborough South bay past the spa Click image for larger version - Name: DSC_1729.jpg, Views: 79, Size: 537.49 KB
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prep01
Hello Christiian, you are quite right, this is Calmites, the tree fern.
Colin Huller
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Christian
Thanks for your reply
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tc
At the risk of being pedantic, yes, it's a Calamites stem pith cast but Calamites wasn't a tree fern. It was a giant horsetail.
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prep01
Wkipedia (part)
A number of organ taxa have been identified as part of a united organism, which has inherited the name Calamites in popular culture. Calamites correctly refers only to casts of the stem of Carboniferous/Permian sphenophytes

The Equisetopsida were formerly regarded as a separate division of spore plants and also called Equisetophyta, Arthrophyta or Sphenophyta; today they have been recognized as rather close relatives of the typical ferns (Pteridopsida) and form a specialized lineage of the Pteridophyta.[5] However, the division between the Equisetopsids and the ferns is so ancient that many botanists, especially paleobotanists, still regard this group as fundamentally separate at the higher level.
Colin Huller
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tc
Hmm. I stand corrected. Sort of. I think...
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LarryS
Fantastic find!
You don't stop playing when you get old, you get old when you stop playing
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Christian
Pity it was a bit big to bring home .
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