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Reference.com/Encyclopedia/Spermatophyte |
 | | gnetae, woody plants in the genera Gnetum, Welwitschia, and Ephedra, and |
 | | Seed-bearing plants were traditionally divided into angiosperms, or flowering plants, and gymnosperms, which includes the gnetae, cycads, ginkgo, and conifers. |
 | | Angiosperms are now thought to have evolved from a gymnosperm ancestor, which would make gymnosperms a paraphyletic group if it includes extinct taxa. |
| www.reference.com /browse/wiki/Seed_plant (489 words) |
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