Our modern diminutive " horsetails " with scaly leaves were represented in the Carboniferous period by gigantic calamites, often with a diameter of I to 2 ft. [Please select]
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With reference to calamites, Prof. [Please select]
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The scholiast to the _De Corona_ of Demosthenes[191] says that the "hieron" of Calamites, an eponymous hero, was close to the Lenaeum. [Please select]
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