Most recent systems place the Welwitschiaceae in the gymnosperm order Gnetales.
2.
However, many other lines of evidence show that Gnetales is not related to angiosperms.
3.
The other extant groups are the 75-80 species of Gnetales and one species of Ginkgo.
4.
Most recent systems place " Welwitschia mirabilis " in its own family Welwitschiaceae in the gymnosperm order Gnetales.
5.
Genetic analyses indicate that the Gnetales arose from within the conifer group, and any morphological similarities between angiosperms and Gnetales have evolved separately.
6.
Genetic analyses indicate that the Gnetales arose from within the conifer group, and any morphological similarities between angiosperms and Gnetales have evolved separately.
7.
Colorful and / or pungent structures surround the cones of plants such as cycads and Gnetales, making a strict definition of the term " flower " elusive.
8.
""'Drewria potomacensis " "'is a Cretaceous megafossil member of the Gnetales, from the Potomac Group, hence its name.
9.
"' Welwitschiaceae "'is a family of plants of the order Gnetales with one living species, " Welwitschia mirabilis ", found in southwestern Africa.
10.
The ancestors of the extant gymnosperm orders Gnetales, Coniferales, Cycadales and Ginkgoales arose during the Late Paleozoic, and became the dominant component of the Late Permian and Mesozoic flora.
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