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Lumnitzera littorea.jpg
Lumnitzera littorea
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Clade: Malvids
Order: Myrtales
Juss. ex Bercht. & J.Presl [1]
Blue Eyes Fuchsia flower and buds, from order Myrtales and family Onagraceae Blue Eyes Fuchsia.JPG
Blue Eyes Fuchsia flower and buds, from order Myrtales and family Onagraceae

The Myrtales are an order of flowering plants placed as a sister to the eurosids II clade as of the publishing of the Eucalyptus grandis genome in June 2014. [2]


The APG III system of classification for angiosperms still places it within the eurosids. This finding is corroborated by the placement of the Myrtales in the Malvid clade by the One Thousand Plant Transcriptomes Initiative. [3] The following families are included as of APG III: [1]

The Cronquist system gives essentially the same composition, except the Vochysiaceae are removed to the order Polygalales, and the Thymelaeaceae are included. The families Sonneratiaceae, Trapaceae, and Punicaceae are removed from the Lythraceae. In the classification system of Dahlgren the Myrtales were in the superorder Myrtiflorae (also called Myrtanae). The APG III system agrees with the older Cronquist circumscriptions of treating Psiloxylaceae and Heteropyxidaceae within Myrtaceae, and Memecyclaceae within Melastomataceae.

Ellagitannins are reported in dicotyledoneous angiosperms, and notably in species in the order Myrtales. [4]


Myrtales is dated to have begun 89–99 million years ago (mya) in Australasia. There is some contention as to that date however, which was obtained using nuclear DNA. When looking at chloroplast DNA, the myrtales ancestor is instead considered to have evolved in the mid-Cretaceous period (100 mya) in Southeast Africa, rather than in Australasia. [5] Although the APG system classifies myrtales as within the eurosids, the recently published genome of Eucalyptus grandis places the order myrtales as a sister to the eurosids rather than inside them. The discrepancy is thought to have arisen due to the difference between using numerous taxa versus using various genes for constructing a phylogeny. [2]

Related Research Articles

<span class="mw-page-title-main">Hamamelidales</span> Order of flowering plants

Hamamelidales is an order of flowering plants formerly accepted in a number of systems of plant taxonomy, including the Cronquist system published in 1968 and 1988. The order is not currently accepted in the Angiosperm Phylogeny Group III system of plant taxonomy, the most widely accepted system as molecular systematic studies have suggested that these families are not closely related to each other. The APG II system (2003) assigns them to several different orders: Hamamelidaceae and Cercidiphyllaceae to Saxifragales, Eupteleaceae to Ranunculales, Platanaceae to Proteales, and Myrothamnaceae to Gunnerales. Additional studies of the chloroplast genome have since confirmed that the families moved into the Saxigragales are closely related.

The Cronquist system is a taxonomic classification system of flowering plants. It was developed by Arthur Cronquist in a series of monographs and texts, including The Evolution and Classification of Flowering Plants and An Integrated System of Classification of Flowering Plants (1981).

<span class="mw-page-title-main">Austrobaileyales</span> Order of flowering plants

Austrobaileyales is an order of flowering plants consisting of about 100 species of woody plants growing as trees, shrubs and lianas. The best-known species is Illicium verum, commonly known as star anise. The order belongs to the group of basal angiosperms, the ANA grade, which diverged earlier from the remaining flowering plants. Austrobaileyales is sister to all remaining extant angiosperms outside the ANA grade.

<span class="mw-page-title-main">Geraniales</span> Order of flowering plants in the rosid subclade of eudicots

Geraniales is a small order of flowering plants, included within the rosid subclade of eudicots. The largest family in the order is Geraniaceae with over 800 species. In addition, the order includes the smaller Francoaceae with about 40 species. Most Geraniales are herbaceous, but there are also shrubs and small trees.

<span class="mw-page-title-main">Zygophyllales</span> Order of dicotyledonous plants

The Zygophyllales are an order of dicotyledonous plants, comprising the following two families:

<span class="mw-page-title-main">Buxales</span> Order of eudicot flowering plants

The Buxales are a small order of eudicot flowering plants, recognized by the APG IV system of 2016. The order includes the family Buxaceae; the families Didymelaceae and Haptanthaceae may also be recognized or may be included in the Buxaceae. Many members of the order are evergreen shrubs or trees, although some are herbaceous perennials. They have separate "male" (staminate) and "female" (carpellate) flowers, mostly on the same plant. Some species are of economic importance either for the wood they produce or as ornamental plants.

<span class="mw-page-title-main">Lythraceae</span> Family of flowering plants

Lythraceae is a family of flowering plants, including 32 genera, with about 620 species of herbs, shrubs, and trees. The larger genera include Cuphea, Lagerstroemia (56), Nesaea (50), Rotala (45), and Lythrum (35). It also includes the pomegranate and the water caltrop. Lythraceae has a worldwide distribution, with most species in the tropics, but ranging into temperate climate regions as well.

<i>Olinia</i> Genus of flowering plants

Olinia is a genus of small trees and shrubs with 10 species in the family Penaeaceae. The species of Olinia are native to Africa, ranging from west Africa to South Africa. It was previously regarded as the sole genus in the family Oliniaceae, but is now included in the expanded Penaeaceae along with Rhynchocalyx under the APG III system of classification.

<i>Rhynchocalyx</i> Genus of trees

Rhynchocalyx lawsonioides is a small flowering tree, the sole species of the genus Rhynchocalyx. It had also previously been regarded as the only species in the monogeneric family Rhynchocalycaceae but is now included in the expanded Penaeaceae along with Olinia under the APG III system of classification. Rhynchocalyx is endemic to the KwaZulu-Cape coastal forest mosaic ecoregion of the Natal and Eastern Cape provinces of South Africa.

<span class="mw-page-title-main">Penaeaceae</span> Family of shrubs

The Penaeaceae are a family of evergreen, leathery-leaved shrubs and small trees, native to South Africa. The family has 29 species in 9 genera. The family Penaeaceae was expanded under the APG III system of classification with the inclusion of the genera Olinia and the single species from the genus Rhynchocalyx.

<i>Alzatea</i> Genus of trees

Alzatea verticillata is a small flowering tree, native to the Neotropics. It inhabits moist submontane forests from Costa Rica and Panama in Central America south to Peru and Bolivia in tropical South America. It is the sole species of genus Alzatea and family Alzateaceae.

<span class="mw-page-title-main">Crypteroniaceae</span> Family of flowering plants

The Crypteroniaceae are a family of flowering trees and shrubs. The family includes 13 species in three genera, native to Indomalaya.

<span class="mw-page-title-main">Rosids</span> Large clade of flowering plants

The rosids are members of a large clade of flowering plants, containing about 70,000 species, more than a quarter of all angiosperms.

The APG system of plant classification is the first version of a modern, mostly molecular-based, system of plant taxonomy. Published in 1998 by the Angiosperm Phylogeny Group, it was replaced by the improved APG II in 2003, APG III system in 2009 and APG IV system in 2016.

The APG II system of plant classification is the second, now obsolete, version of a modern, mostly molecular-based, system of plant taxonomy that was published in April 2003 by the Angiosperm Phylogeny Group. It was a revision of the first APG system, published in 1998, and was superseded in 2009 by a further revision, the APG III system.

A system of plant taxonomy, the Goldberg system was published in:

A system of plant taxonomy, the Bessey system was published by Charles Bessey in 1915.

The APG III system of flowering plant classification is the third version of a modern, mostly molecular-based, system of plant taxonomy being developed by the Angiosperm Phylogeny Group (APG). Published in 2009, it was superseded in 2016 by a further revision, the APG IV system.

The APG IV system of flowering plant classification is the fourth version of a modern, mostly molecular-based, system of plant taxonomy for flowering plants (angiosperms) being developed by the Angiosperm Phylogeny Group (APG). It was published in 2016, seven years after its predecessor the APG III system was published in 2009, and 18 years after the first APG system was published in 1998. In 2009, a linear arrangement of the system was published separately; the APG IV paper includes such an arrangement, cross-referenced to the 2009 one.


  1. 1 2 Angiosperm Phylogeny Group (2009), "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III", Botanical Journal of the Linnean Society, 161 (2): 105–121, doi: 10.1111/j.1095-8339.2009.00996.x
  2. 1 2 Myburg AA, Grattapaglia D, Tuskan GA, Hellsten U, Hayes RD, Grimwood J, et al. (June 2014). "The genome of Eucalyptus grandis" (PDF). Nature. 510 (7505): 356–62. Bibcode:2014Natur.510..356M. doi: 10.1038/nature13308 . PMID   24919147. S2CID   4392576.
  3. Leebens-Mack JH, Barker MS, Carpenter EJ, Deyholos MK, Gitzendanner MA, Graham SW, et al. (One Thousand Plant Transcriptomes Initiative) (October 2019). "One thousand plant transcriptomes and the phylogenomics of green plants". Nature. 574 (7780): 679–685. doi:10.1038/s41586-019-1693-2. PMC   6872490 . PMID   31645766.
  4. Yoshida T, Amakura Y, Yoshimura M (January 2010). "Structural features and biological properties of ellagitannins in some plant families of the order Myrtales". International Journal of Molecular Sciences. 11 (1): 79–106. doi: 10.3390/ijms11010079 . PMC   2820991 . PMID   20162003.
  5. Grattapaglia D, Vaillancourt RE, Shepherd M, Thumma BR, Foley W, Külheim C, Potts BM, Myburg AA (June 2012). "Progress in Myrtaceae genetics and genomics: Eucalyptus as the pivotal genus". Tree Genetics & Genomes. 8 (3): 463–508. doi: 10.1007/s11295-012-0491-x .

Further reading

Wikispecies-logo.svg Data related to Myrtales at Wikispecies