subdivision Gnetophytina
sub·di·vi·siongnetophytina
noun
1.
gymnospermous flowering plants; supposed link between conifers and angiosperms; in some systems classified as a class (Gnetopsida) and in others as a subdivision (Gnetophytina or Gnetophyta)
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WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.