Euploca: Difference between revisions
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'''''Euploca''''' is an almost [[cosmopolitan]] genus of plants with around 100 species.<ref name="LuebertCecchi2016"/> It was first described by [[Thomas Nuttall]] in 1837.<ref name="Tropicos"/><ref name="Nuttall1937"/> While part of the broadly defined [[Boraginaceae]] in the [[APG IV]] system from 2016,<ref name="APGIV"/> a revision of the order [[Boraginales]] from the same year includes ''Euploca'' in the separate family [[Heliotropiaceae]].<ref name="LuebertCecchi2016"/> 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''.<ref name="HilgerDiane2003"/> While many species use the [[C4 carbon fixation|{{C4}} photosynthetic]] pathway,<ref name="Sage2016"/> there are also {{C3}}–{{C4}} intermediate species.<ref name="VoganFrohlich2007"/><ref name="SageChristin2011"/> Species have leaves with a {{C4}}-typical [[Kranz anatomy]].<ref name="HilgerDiane2003"/> |
'''''Euploca''''' is an almost [[Cosmopolitan distribution|cosmopolitan]] genus of plants with around 100 species.<ref name="LuebertCecchi2016"/> It was first described by [[Thomas Nuttall]] in 1837.<ref name="Tropicos"/><ref name="Nuttall1937"/> While part of the broadly defined [[Boraginaceae]] in the [[APG IV]] system from 2016,<ref name="APGIV"/> a revision of the order [[Boraginales]] from the same year includes ''Euploca'' in the separate family [[Heliotropiaceae]].<ref name="LuebertCecchi2016"/> 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''.<ref name="HilgerDiane2003"/> While many species use the [[C4 carbon fixation|{{C4}} photosynthetic]] pathway,<ref name="Sage2016"/> there are also {{C3}}–{{C4}} intermediate species.<ref name="VoganFrohlich2007"/><ref name="SageChristin2011"/> Species have leaves with a {{C4}}-typical [[Kranz anatomy]].<ref name="HilgerDiane2003"/> |
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Selected species: |
Selected species: |
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Revision as of 16:31, 17 June 2018
| Euploca | |
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| Euploca salicoides | |
Scientific classification 
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| 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. | |
| Synonyms[2][3] | |
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Euploca is an almost cosmopolitan genus of plants with around 100 species.[3] It was first described by Thomas Nuttall in 1837.[1][4] While part of the broadly defined Boraginaceae in the APG IV system from 2016,[5] a revision of the order Boraginales from the same year includes Euploca in the separate family Heliotropiaceae.[3] 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.[2] While many species use the C4 photosynthetic pathway,[6] there are also C3–C4 intermediate species.[7][8] Species have leaves with a C4-typical Kranz anatomy.[2]
Selected species:
- E. convolvulacea Nutt. (sweet-scented heliotrope, showy heliotrope)
- E. filiformis (Lehm.) J.I.M.Melo & Semir
- E. salicoides (Cham.) J.I.M.Melo & Semir
References
- ^ a b "Tropicos – Euploca Nutt". 2018. Retrieved 16 June 2018.
- ^ a b c Hilger, H.H.; Diane, N. (2003). "A systematic analysis of Heliotropiaceae (Boraginales) based on trnL and ITS1 sequence data" (PDF). Botanische Jahrbücher. 125 (1): 19–51. doi:10.1127/0006-8152/2003/0125-0019. ISSN 0006-8152.
- ^ 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" (PDF). Taxon. 65 (3): 502–522. doi:10.12705/653.5. ISSN 0040-0262. Retrieved 16 June 2018.
- ^ 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.
- ^ 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.
- ^ 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.
- ^ 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.
- ^ 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.
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