This is Gnetopsida as seen by
Integrated Taxonomic Information System (ITIS) checklist.
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GBIF view on Gnetopsida
by selecting the GBIF Backbone tab above.
The content of the "Default citation" depends on the metadata supplied by the publisher. In some cases this may be incomplete.
Guala G (2017). Integrated Taxonomic Information System (ITIS). National Museum of Natural History, Smithsonian Institution. Checklist Dataset https://doi.org/10.15468/rjarmt accessed via GBIF.org on 2017-07-16.
There may be more details available about this name usage in the verbatim version of the record.
This record was last modified in GBIF on Apr 28, 2017. The source was last visited by GBIF on Apr 5, 2017.
A record will be modified by GBIF when either the source record has been changed by the publisher, or improvements in the GBIF processing warrant an update.