Euploca

Euploca
Euploca salicoides
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Boraginales
Family: Heliotropiaceae
Genus: Euploca
Nutt.
Type species
E. convolvulacea Nutt.
Species

168; see text

Synonyms
List
    • 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.

Description

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

Taxonomy

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

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.

Species

168 species are accepted.

Distribution and habitat

The genus has an almost cosmopolitan distribution.

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 icon
  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 icon
  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 icon
  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 icon