Apiales

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Apiales
Umbella.jpg
Inflorescence of a wild carrot, Daucus carota , in the family Apiaceae.
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Clade: Campanulids
Order: Apiales
Nakai [1]
Families [1]

The Apiales are an order of flowering plants. The families are those recognized in the APG III system. [1] This is typical of the newer classifications, though there is some slight variation and in particular, the Torriceliaceae may also be divided. [2]

Contents

Under this definition, well-known members include carrots, celery, parsley, and Hedera helix (English ivy).

The order Apiales is placed within the asterid group of eudicots as circumscribed by the APG III system. [1] Within the asterids, Apiales belongs to an unranked group called the campanulids, [3] and within the campanulids, it belongs to a clade known in phylogenetic nomenclature as Apiidae. [4] In 2010, a subclade of Apiidae named Dipsapiidae was defined to consist of the three orders: Apiales, Paracryphiales, and Dipsacales. [5]

Taxonomy

Under the Cronquist system, only the Apiaceae and Araliaceae were included here, and the restricted order was placed among the rosids rather than the asterids. The Pittosporaceae were placed within the Rosales, and many of the other forms within the family Cornaceae. Pennantia was in the family Icacinaceae. In the classification system of Dahlgren the families Apiaceae and Araliaceae were placed in the order Ariales, in the superorder Araliiflorae (also called Aralianae).

The present understanding of the Apiales is fairly recent and is based upon comparison of DNA sequences by phylogenetic methods. [6] The circumscriptions of some of the families have changed. In 2009, one of the subfamilies of Araliaceae was shown to be polyphyletic. [7]

Gynoecia

The largest and obviously closely related families of Apiales are Araliaceae, Myodocarpaceae and Apiaceae, which resemble each other in the structure of their gynoecia. In this respect however, the Pittosporaceae is notably distinct from them. [8]

Typical syncarpous gynoecia exhibit four vertical zones, determined by the extent of fusion of the carpels. In most plants, the synascidiate (i.e. "united bottle-shaped") and symplicate zones are fertile and bear the ovules. [9] Each of the first three families possess mainly bi- or multilocular ovaries in a gynoecium with a long synascidiate, but very short symplicate zone, where the ovules are inserted at their transition, the so-called cross-zone (or "Querzone"). [8]

In gynoecia of the Pittosporaceae, the symplicate is much longer than the synascidiate zone, and the ovules are arranged along the first. Members of the latter family consequently have unilocular ovaries with a single cavity between adjacent carpels. [8]

Related Research Articles

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

Apiaceae or Umbelliferae is a family of mostly aromatic flowering plants named after the type genus Apium and commonly known as the celery, carrot or parsley family, or simply as umbellifers. It is the 16th-largest family of flowering plants, with more than 3,800 species in about 446 genera, including such well-known and economically important plants as ajwain, angelica, anise, asafoetida, caraway, carrot, celery, chervil, coriander, cumin, dill, fennel, lovage, cow parsley, parsley, parsnip and sea holly, as well as silphium, a plant whose exact identity is unclear and which may be extinct.

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

The Dipsacales are an order of flowering plants, included within the asterid group of dicotyledons. In the APG III system of 2009, the order includes only two families, Adoxaceae and a broadly defined Caprifoliaceae. Some well-known members of the Dipsacales order are honeysuckle, elder, viburnum, and valerian.

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

Canellales is the botanical name for an order of flowering plants, one of the four orders of the magnoliids. It is recognized by the most recent classification of flowering plants, the APG IV system. It is defined to contain two families: Canellaceae and Winteraceae, which comprise 136 species of fragrant trees and shrubs. The Canellaceae are found in tropical America and Africa, and the Winteraceae are part of the Antarctic flora. Although the order was defined based on phylogenetic studies, a number of possible synapomorphies have been suggested, relating to the pollen tube, the seeds, the thickness of the integument, and other aspects of the morphology.

Urticales is an order of flowering plants. Before molecular phylogenetics became an important part of plant taxonomy, Urticales was recognized in many, perhaps even most, systems of plant classification, with some variations in circumscription. Among these is the Cronquist system (1981), which placed the order in the subclass Hamamelidae [sic], as comprising:

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

The Araliaceae are a family of flowering plants composed of about 43 genera and around 1500 species consisting of primarily woody plants and some herbaceous plants commonly called the ginseng family. The morphology of Araliaceae varies widely, but it is predominantly distinguishable based on its woody habit, tropical distribution, and the presence of simple umbels.

<span class="mw-page-title-main">Primulaceae</span> Family of flowering plants that includes the primroses

The Primulaceae, commonly known as the primrose family, are a family of herbaceous and woody flowering plants including some favourite garden plants and wildflowers. Most are perennial though some species, such as scarlet pimpernel, are annuals.

<span class="mw-page-title-main">Saxifragaceae</span> Family of flowering plants in the Eudicot order Saxifragales

Saxifragaceae is a family of herbaceous perennial flowering plants, within the core eudicot order Saxifragales. The taxonomy of the family has been greatly revised and the scope much reduced in the era of molecular phylogenetic analysis. The family is divided into ten clades, with about 640 known species in about 35 accepted genera. About half of these consist of a single species, but about 400 of the species are in the type genus Saxifraga. The family is predominantly distributed in the northern hemisphere, but also in the Andes in South America.

<span class="mw-page-title-main">Eudicots</span> Clade of flowering plants

The eudicots, Eudicotidae, or eudicotyledons are a clade of flowering plants (angiosperms) which are mainly characterized by having two seed leaves (cotyledons) upon germination. The term derives from dicotyledon. Previously, they were called tricolpates or non-magnoliid dicots by past authors. The current botanical terms were introduced in 1991, by evolutionary botanist James A. Doyle and paleobotanist Carol L. Hotton, to emphasize the later evolutionary divergence of tricolpate dicots from earlier, less specialized, dicots.

<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.

<span class="mw-page-title-main">Asterids</span> Clade of eudicot angiosperms

In the APG IV system (2016) for the classification of flowering plants, the name asterids denotes a clade. Asterids is the largest group of flowering plants, with more than 80,000 species, about a third of the total flowering plant species. Well-known plants in this clade include the common daisy, forget-me-nots, nightshades, the common sunflower, petunias, yacon, morning glory, lettuce, sweet potato, coffee, lavender, lilac, olive, jasmine, honeysuckle, ash tree, teak, snapdragon, sesame, psyllium, garden sage, table herbs such as mint, basil, and rosemary, and rainforest trees such as Brazil nut.

<span class="mw-page-title-main">Peridiscaceae</span> Family of flowering plants in the order Saxifragales

Peridiscaceae is a family of flowering plants in the order Saxifragales. Four genera comprise this family: Medusandra, Soyauxia, Peridiscus, and Whittonia., with a total of 12 known species. It has a disjunct distribution, with Peridiscus occurring in Venezuela and northern Brazil, Whittonia in Guyana, Medusandra in Cameroon, and Soyauxia in tropical West Africa. Whittonia is possibly extinct, being known from only one specimen collected below Kaieteur Falls in Guyana. In 2006, archeologists attempted to rediscover it, however, it proved unsuccessful.

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

Huerteales is the botanical name for an order of flowering plants. It is one of the 17 orders that make up the large eudicot group known as the rosids in the APG III system of plant classification. Within the rosids, it is one of the orders in Malvidae, a group formerly known as eurosids II and now known informally as the malvids. This is true whether Malvidae is circumscribed broadly to include eight orders as in APG III, or more narrowly to include only four orders. Huerteales consists of four small families, Petenaeaceae, Gerrardinaceae, Tapisciaceae, and Dipentodontaceae.

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

Cardiopteridaceae is a eudicot family of flowering plants. It consists of about 43 species of trees, shrubs, and woody vines, mostly of the tropics, but with a few in temperate regions. It contains six genera, the largest of which is Citronella, with 21 species. The other genera are much smaller.

<span class="mw-page-title-main">Mackinlayoideae</span> Subfamily of flowering plants

Mackinlayoideae is a subfamily of plants containing about nine genera. In the APG II system it was treated at family rank as Mackinlayaceae, but since then it has been reclassified as a subfamily of Apiaceae.

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

Bruniales is a valid botanic name at the rank of order. Until recently it was not in use, but a 2008 study suggested that Bruniaceae and Columelliaceae are sister clades. The latest revision of the APG system, APG III, places both families as the only members of the order Bruniales, which is sister to the Apiales, and one of the asterid taxa.

<span class="mw-page-title-main">Mesangiospermae</span> One of two clades of flowering plants

Mesangiospermae is a clade of flowering plants (angiosperms), informally called "mesangiosperms". They are one of two main groups of angiosperms. It is a name created under the rules of the PhyloCode system of phylogenetic nomenclature. There are about 350,000 species of mesangiosperms. The mesangiosperms contain about 99.95% of the flowering plants, assuming that there are about 175 species not in this group and about 350,000 that are. While such a clade with a similar circumscription exists in the APG III system, it was not given a name.

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

Tetracarpaea is the only genus in the flowering plant family Tetracarpaeaceae. Some taxonomists place it in the family Haloragaceae sensu lato, expanding that family from its traditional circumscription to include Penthorum and Tetracarpaea, and sometimes Aphanopetalum as well.

<span class="mw-page-title-main">Superrosids</span> Clade of flowering plants

The superrosids are members of a large clade of flowering plants, containing more than 88,000 species, and thus more than a quarter of all angiosperms.

<span class="mw-page-title-main">Superasterids</span> Clade of flowering plants

The superasterids are members of a large clade of flowering plants, containing more than 122,000 species.

References

  1. 1 2 3 4 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 . hdl: 10654/18083 .
  2. Plunkett, Gregory M.; Chandler, Gregory T.; Lowry, Porter P.; Pinney, Steven M.; Sprenkle, Taylor S. (2004). "Recent advances in understanding Apiales and a revised classification". South African Journal of Botany. 70 (3): 371–381. doi: 10.1016/s0254-6299(15)30220-9 .
  3. Winkworth, Richard C.; Lundberg, Johannes; Donoghue, Michael J. (2008). "Toward a resolution of Campanulid phylogeny, with special reference to the placement of Dipsacales". Taxon. 57 (1): 53–65.
  4. Philip D. Cantino; James A. Doyle; Sean W. Graham; Walter S. Judd; Richard G. Olmstead; Douglas E. Soltis; Pamela S. Soltis; Michael J. Donoghue (2007). "Towards a phylogenetic nomenclature of Tracheophyta" (PDF). Taxon. 56 (3): 822–846. doi:10.2307/25065865. JSTOR   25065865.
  5. Tank, D. C.; Donoghue, M. J. (2010). "Phylogeny and Phylogenetic Nomenclature of the Campanulidae based on an Expanded Sample of Genes and Taxa". Systematic Botany. 35 (2): 425. doi:10.1600/036364410791638306. S2CID   27856073.
  6. Chandler, G. T.; Plunkett, G. M. (2004). "Evolution in Apiales: nuclear and chloroplast markers together in (almost) perfect harmony". Botanical Journal of the Linnean Society. 144 (2): 123. doi: 10.1111/j.1095-8339.2003.00247.x .
  7. Nicolas, A. N.; Plunkett, G. M. (2009). "The demise of subfamily Hydrocotyloideae (Apiaceae) and the re-alignment of its genera across the entire order Apiales". Molecular Phylogenetics and Evolution. 53 (1): 134–151. doi:10.1016/j.ympev.2009.06.010. PMID   19549570.
  8. 1 2 3 Oskolski, Alexei A.; Sokoloff, Dmitry D.; Van Wyk, Ben-Erik (2010). "False paracarpy in Seemannaralia (Araliaceae): from bilocular ovary to unilocular fruit" (PDF). Annals of Botany. 106 (1): 29–36. doi:10.1093/aob/mcq084. PMC   2889795 . PMID   20462851. Archived (PDF) from the original on 9 October 2022. Retrieved 28 April 2017.
  9. Pankhurst, R. J. (1992). Morphology of flowers and inflorescences (1st pbk. ed.). Cambridge, England: Cambridge University Press. pp. 153–155. ISBN   9780521438322.