1. World problems
  2. Threatened species of Gnetophyta

Threatened species of Gnetophyta

  • Threatened species of Gnetophytina
  • Threatened 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

Narrower

SDG

Sustainable Development Goal #15: Life on Land

Metadata

Database
World problems
Type
(E) Emanations of other problems
Biological classification
(E) Order
Subject
Content quality
Unpresentable
 Unpresentable
Language
English
1A4N
T4228
DOCID
13042280
D7NID
149340
Editing link
Official link
Last update
Sep 23, 2020