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Gymnospermae


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A subdivision of seed plants (Spermatophyta), now considered polyphyletic, traditionally containing the extinct Pteridospermales (seed ferns), ginkgos, cycads, conifers, and gnetophytes. These are now ranked separately. See ginkgoales, cycadopsida, coniferopsida, and gnetales.

Subjects: Plant Sciences and Forestry — Earth Sciences and Geography.


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