Problem
Threatened species of Gnetophyta
Other Names:
Threatened species of GnetophytinaThreatened species of Gnetales
Endangered species of gnetophytes
Background:
The gymnosperms have been subdivided along a variety of different lines and the recent flood of information on fundamental taxonomic characters (such as chloroplast DNA) has led to further revisions. The principal point of contention between various schemes for dividing gymnosperms above the family level seems to be at what point in the hierarchy are distinctions to be made. The gnetophytes are variously treated as a phylum, subphylum or order within the gymnosperms.
Broader Problems:
Threatened species of PlantaeThreatened species of Gymnospermae Narrower Problems:
Threatened species of GnetaceaeThreatened species of EphedraceaeThreatened species of Welwitschiaceae Subject(s):
Societal Problems → Endangered speciesRelated UN Sustainable Development Goals:
Problem Type:
C: Cross-sectoral problems Date of last update
16.04.2019 – 15:45 CEST