Euploca

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Euploca
Heliotropium salicoides Cham. - Flickr - Alex Popovkin, Bahia, Brazil (2).jpg
Euploca salicoides
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Boraginales
Family: Boraginaceae
Subfamily: Heliotropioideae
Genus: Euploca
Nutt. [1]
Type species
E. convolvulacea Nutt.
Species [2]

168; see text

Synonyms [2] [3] [4]
List
    • HilgeriaFörther
    • HeliotropiumL. sect. EuplocaNutt. (A.Gray)
    • HeliotropiumL. sect. OrthostachysR.Br.
    • Orthostachys(R.Br.) Spach
    • PentacaryaDC. ex Meisn.
    • PioctononRaf.
    • PreslaeaMart.
    • SchleideniaEndl.

Euploca is an almost cosmopolitan genus of plants with 168 species.

Contents

Description

While many species use the C4 photosynthetic pathway, [5] there are also C3–C4 intermediate species. [6] [7] Some species have leaves with a C4-typical Kranz anatomy. [3]

Taxonomy

The genus was first described by Thomas Nuttall in 1837. [1] [8] While part of the broadly defined Boraginaceae in the APG IV system from 2016, [9] a revision of the order Boraginales from the same year includes Euploca in the separate family Heliotropiaceae. [4]

Its species used to be classified in the genera Hilgeria and Schleidenia and in Heliotropium sect. Orthostachys, but were found to form an independent lineage in a molecular phylogenetic analysis, more closely related to Myriopus than to Heliotropium. [3]

Species

168 species are accepted. [2]

Distribution and habitat

The genus has an almost cosmopolitan distribution. [4]

References

  1. 1 2 "Tropicos – Euploca Nutt". 2018. Retrieved 16 June 2018.
  2. 1 2 3 Euploca Nutt. Plants of the World Online . Retrieved 25 July 2024.
  3. 1 2 3 Hilger, H.H.; Diane, N. (2003). "A systematic analysis of Heliotropiaceae (Boraginales) based on trnL and ITS1 sequence data". Botanische Jahrbücher. 125 (1): 19–51. doi:10.1127/0006-8152/2003/0125-0019. ISSN   0006-8152.
  4. 1 2 3 Luebert, F.; Cecchi, L.; Frohlich, M.W.; Gottschling, M.; Guilliams, C.M.; Hasenstab-Lehman, K.E.; Hilger, H.H.; Miller, J.S.; Mittelbach, M.; Nazaire, M.; Nepi, M.; Nocentini, D.; Ober, D.; Olmstead, R.G.; Selvi, F.; Simpson, M.G.; Sutorý, K.; Valdés, B.; Walden, G.K.; Weigend, M. (2016). "Familial classification of the Boraginales". Taxon. 65 (3): 502–522. doi:10.12705/653.5. hdl: 2158/1062790 . ISSN   0040-0262 . Retrieved 16 June 2018.
  5. ↑ Sage, R.F. (2016). "A portrait of the C4 photosynthetic family on the 50th anniversary of its discovery: species number, evolutionary lineages, and Hall of Fame". Journal of Experimental Botany. 67 (14): 4039–4056. doi: 10.1093/jxb/erw156 . ISSN   0022-0957. PMID   27053721. Open Access logo PLoS transparent.svg
  6. ↑ Vogan, P.J.; Frohlich, M.W.; Sage, R.F. (2007). "The functional significance of C3–C4 intermediate traits in Heliotropium L. (Boraginaceae): gas exchange perspectives". Plant, Cell & Environment. 30 (10): 1337–1345. doi:10.1111/j.1365-3040.2007.01706.x. ISSN   0140-7791. PMID   17727423. Open Access logo PLoS transparent.svg
  7. ↑ Sage, R.F.; Christin, P.-A.; Edwards, E.J. (2011). "The C4 plant lineages of planet Earth". Journal of Experimental Botany. 62 (9): 3155–3169. doi: 10.1093/jxb/err048 . ISSN   0022-0957. PMID   21414957. Open Access logo PLoS transparent.svg
  8. ↑ Nuttall, T. (1837). "Collections towards a flora of the territory of Arkansas". Transactions of the American Philosophical Society. New Series. 5: 189–190. OCLC   2382293.
  9. ↑ Angiosperm Phylogeny Group (2016). "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG IV". Botanical Journal of the Linnean Society. 181 (1): 1–20. doi: 10.1111/boj.12385 . Open Access logo PLoS transparent.svg


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