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Euploca

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Euploca
Euploca salicoides
Scientific classification Edit this classification
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]
  • Hilgeria Förther
  • Heliotropium L. sect. Euploca Nutt. (A.Gray)
  • Heliotropium L. sect. Orthostachys R.Br.
  • Orthostachys (R.Br.) Spach
  • Pentacarya DC. ex Meisn.
  • Pioctonon Raf.
  • Preslaea Mart.
  • Schleidenia Endl.

Euploca is an almost cosmopolitan genus of plants with 168 species.[2][4] It was first described by Thomas Nuttall in 1837.[1][5] While part of the broadly defined Boraginaceae in the APG IV system from 2016,[6] 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] While many species use the C4 photosynthetic pathway,[7] there are also C3–C4 intermediate species.[8][9] Species have leaves with a C4-typical Kranz anatomy.[3]

Species

[edit]

168 species are accepted.[2]

References

[edit]
  1. ^ a b "Tropicos – Euploca Nutt". 2018. Retrieved 16 June 2018.
  2. ^ a b c d Euploca Nutt. Plants of the World Online. Retrieved 25 July 2024.
  3. ^ a b c 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. ^ a b c 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. ^ 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.
  6. ^ 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 icon
  7. ^ 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 icon
  8. ^ 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 icon
  9. ^ 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 icon


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