Biology:Cyclostigma

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Short description: Extinct genus of spore-bearing plants

Cyclostigma
Temporal range: Emsian
Scientific classification e
Kingdom: Plantae
Clade: Tracheophytes
Clade: Lycophytes
Class: Lycopodiopsida
Genus: Cyclostigma
Haught., nom. cons.[1]

Cyclostigma is a genus of extinct plants belonging to the Lycopodiopsida (lycopsids).

Taxonomy

Cyclostigma Haught. was first used by Samuel Haughton in 1859 for the type species C. kiltorkense.[1] The name Cyclostigma has been used for a genus no fewer than four times. Three are synonyms:

  • Cyclostigma Hochst. ex Endl. is a synonym of Voacanga Thouars.[2] This is the oldest name, dating from 1842, and so would normally have priority but Cyclostigma Haught. has been conserved against it.[1]
  • Cyclostigma Klotzsch is a synonym of Croton L.[3]
  • Cyclostigma Phil. is a synonym of Leptoglossis Benth.[4]

Hao and Xue in 2013 listed Cyclostigma as a lycopsid.[5]

References

  1. 1.0 1.1 1.2 Search for 'Cyclostigma', Smithsonian National Museum of Natural History, https://naturalhistory2.si.edu/botany/codes-proposals/, retrieved 2019-10-31 
  2. "Cyclostigma Hochst. ex Endl.", Plants of the World Online (Royal Botanic Gardens, Kew), http://www.plantsoftheworldonline.org/taxon/urn:lsid:ipni.org:names:30078353-2, retrieved 2019-10-31 
  3. "Cyclostigma Klotzsch", Plants of the World Online (Royal Botanic Gardens, Kew), http://www.plantsoftheworldonline.org/taxon/urn:lsid:ipni.org:names:322019-2, retrieved 2019-10-31 
  4. "Cyclostigma Phil.", Plants of the World Online (Royal Botanic Gardens, Kew), http://www.plantsoftheworldonline.org/taxon/urn:lsid:ipni.org:names:38331-1, retrieved 2019-10-31 
  5. Hao, Shougang; Xue, Jinzhuang (2013), The early Devonian Posongchong flora of Yunnan: a contribution to an understanding of the evolution and early diversification of vascular plants, Beijing: Science Press, p. 329, ISBN 978-7-03-036616-0, https://www.researchgate.net/publication/269875285, retrieved 2019-10-25 


Wikidata ☰ Q85754904 entry