Gnetophytes: Gnetophytes (or Gnetophyta) are a division of vascular plants which breaks down into three genera or families. They are woody plants without resin channels. These are the only Gymnosperms with heteroxylated wood. They are similar to the Pinales or Pinaceae, whereas for a long time they were considered as a sister group of the Angiosperms with which they formed the monophyletic group of the Anthophytes. Indeed, they share several characteristics ...
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