Crassula helmsii

Crassula helmsii

Taxonavigation

Taxonavigation: Saxifragales
Classification System: APG IV Superregnum: Eukaryota Regnum: Plantae Cladus: Angiosperms Cladus: Eudicots Cladus: Core eudicots Ordo: Saxifragales

Familia: Crassulaceae
Subfamilia: Crassuloideae
Genus: Crassula
Species: Crassula helmsii

Name

Crassula helmsii (Kirk) Cockayne, Trans. & Proc. New Zealand Inst. 39: 349 1907.

Synonyms

• Basionym
• Tillaea helmsii Kirk, Stud. Fl. New Zealand: 142, 1899
• Heterotypic
• Tillaea verticillaris Hook. in Hooker's Icon. Pl. 3: t. 295 (1840), nom. illeg., non Tillaea verticillaris DC., 1828
• Bulliarda recurva Hook. fil., London J. Bot. 6: 472 bis, 1847
• Crassula recurva (Hook. fil.) Ostenf., 1918, nom. illeg., non Crassula recurva N.E.Br., 1890
• Tillaea recurva (Hook. fil.) Hook. fil., Fl. Tasman. 1: 146, 1856

Notes

• New Zealand material (C. helmsii s.str.) is diploid (2n=14), Australian material is hexaploid (2n=42). If Australian specimens are to be distinguished, they will require a new name, as the names based on Australian types are later homonyms of other taxa in the genus.

Distribution

Native distribution areas:

Continental: Australasia Regional: Australia Australia (Western Australia, South Australia, New South Wales, Victoria, Tasmania) Regional: New Zealand New Zealand Continental: Europe Regional: Northern Europe Great Britain, Ireland Regional: Middle Europe Belgium, Germany, Netherlands Regional: Southwestern Europe France References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition

References

Primary references

• Cockayne, L.C., 1907. Transactions and Proceedings of the New Zealand Institute 39: 349.

Links

• Hassler, M. 2019. Crassula helmsii. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2019. Species 2000 & ITIS Catalogue of Life. Published online. Accessed: 2019 November 23. Reference page. 
• Govaerts, R. et al. 2019. Crassula helmsii in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2019 November 23. Reference page. 
• International Plant Names Index. 2019. Crassula helmsii. Published online. Accessed: November 23 2019.
• Tropicos.org 2019. Crassula helmsii. Missouri Botanical Garden. Published online. Accessed: 23 November 2019.
• USDA, ARS, Germplasm Resources Information Network. Crassula helmsii in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 08-Apr-12.
• Crassula helmsii Fact Sheet New Zealand Plant Conservation Network.

Vernacular names

Cymraeg: Corchwyn Seland Newydd
English: New Zealand Pygmyweed
hornjoserbsce: Jehličkowa tołsćinka
Nederlands: Watercrassula

For more multimedia, look at Crassula helmsii on Wikimedia Commons.