Collinsonia Explained

Collinsonia is a genus of flowering plants in the family Lamiaceae. It is native to East Asia and eastern North America.^{[1] [2] [3] [4]} It was named for the English botanist Peter Collinson (1694–1768) by Carl Linnaeus in Species Plantarum in 1753.^[5] It is in the tribe Elsholtzieae, a small tribe of only 5 genera.^[6] In order of their number of species, they are Elsholtzia, Mosla, Collinsonia, Perilla, and Perillula.

The circumscription of species in Collinsonia has been a source of confusion, and many names have been published.^[7] Some authors have recognized as many as 10 species. In 2006, the genus was revised with only four species recognized.^[8] The following list of species follows the World Checklist from Kew Gardens in London.

• Collinsonia anisata Sims - Alabama, Mississippi, Florida, Georgia
• Collinsonia australis (C.Y.Wu & H.W.Li) Harley - Fujian, Guangdong
• Collinsonia canadensis L. - Quebec, Ontario, eastern United States
• Collinsonia elsholtzioides (Merr.) Harley - Anhui, Guangdong, Hubei, Hunan, Jiangxi, Zhejiang
• Collinsonia glandulosa (C.Y.Wu) Harley - Fujian
• Collinsonia japonica (Miq.) Harley - Japan
• Collinsonia macrobracteata (Masam.) Harley - Taiwan
• Collinsonia punctata Elliott - southeastern United States from Louisiana to North Carolina
• Collinsonia sinensis (Diels) Harley - Anhui, Jiangsu, Zhejiang
• Collinsonia szechuanensis (C.Y.Wu) Harley - Sichuan, Yunnan
• Collinsonia verticillata Baldwin ex Elliott - eastern United States from Ohio and Virginia south to Alabama

Notes and References

1. http://apps.kew.org/wcsp/namedetail.do?name_id=46221 Kew World Checklist of Selected Plant Families
2. http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=117022 Flora of China Vol. 17 Page 257 香简草属 xiang jian cao shu Keiskea Miquel, Ann. Mus. Bot. Lugduno-Batavi. 2: 105. 1865.
3. http://bonap.net/NAPA/TaxonMaps/Genus/County/Collinsonia Biota of North America Program, 2013 county distribution maps
4. Alan S. Weakley. "Collinsonia" page 745. In: Flora of the Carolinas, Virginia, and Georgia (title varying with update). (see External links below).
5. Umberto Quattrocchi. 2000. CRC World Dictionary of Plant Names volume I. CRC Press: Boca Raton; New York; Washington,DC;, USA. London, UK. .
6. Raymond M. Harley, Sandy Atkins, Andrey L. Budantsev, Philip D. Cantino, Barry J. Conn, Renée J. Grayer, Madeline M. Harley, Rogier P.J. de Kok, Tatyana V. Krestovskaja, Ramón Morales, Alan J. Paton, and P. Olof Ryding. 2004. "Labiatae" pages 167-275. In: Klaus Kubitzki (editor) and Joachim W. Kadereit (volume editor). The Families and Genera of Vascular Plants volume VII. Springer-Verlag: Berlin; Heidelberg, Germany.
7. Collinsonia At: International Plant Names Index. (see External links below)
8. Jess A. Peirson, Philip D. Cantino, and Harvey E. Ballard Jr. 2006. "A Taxonomic Revision of Collinsonia (Lamiaceae) Based on Phenetic Analyses of Morphological Variation". Systematic Botany 31(2):398-409.