Cyclostigma

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

This article is about the genus of extinct lycophytes. For other plant genera, see § Taxonomy.

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

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. "Search for 'Cyclostigma'", International Code of Nomenclature for algae, fungi, and plants: Appendices I–VII, Smithsonian National Museum of Natural History, retrieved 2019-10-31
  2. "Cyclostigma Hochst. ex Endl.", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2019-10-31
  3. "Cyclostigma Klotzsch", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2019-10-31
  4. "Cyclostigma Phil.", Plants of the World Online, Royal Botanic Gardens, Kew, 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, retrieved 2019-10-25


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