Apiaceae

Carrot family
Umbelliferae: Apium leaves and tiny inflorescences, Daucus habit, Foeniculum inflorescences, Eryngium inflorescences, Petroselinum root.
Scientific classification
Kingdom: Plantae
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Apiales
Family: Apiaceae
Lindl.
Type genus
Apium
L.
Subfamilies
Synonyms

Umbelliferae

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. It is the 16th-largest family of flowering plants, with more than 3,700 species in 434 genera[1] including such well-known and economically important plants such as angelica, anise, asafoetida, caraway, carrot, celery, chervil, coriander, cumin, dill, fennel, hemlock, lovage, cow parsley, parsley, parsnip, sea holly, giant hogweed and silphium (a plant whose identity is unclear and which may be extinct).

Description

Most Apiaceae are annual, biennial or perennial herbs (frequently with the leaves aggregated toward the base), though a minority are woody shrubs or small trees such as Bupleurum fruticosum.[2]:35 Their leaves are of variable size and alternately arranged, or with the upper leaves becoming nearly opposite. The leaves may be petiolate or sessile. There are no stipules but the petioles are frequently sheathing and the leaves may be perfoliate. The leaf blade is usually dissected, ternate or pinnatifid, but simple and entire in some genera, e.g. Bupleurum.[3] Commonly, their leaves emit a marked smell when crushed, aromatic to foetid, but absent in some species.

The defining characteristic of this family is the inflorescence, the flowers nearly always aggregated in terminal umbels, that may be simple or more commonly compound, often umbelliform cymes. The flowers are usually perfect (hermaphroditic) and actinomorphic but there may be zygomorphic petals at the edges of the umbel, as in carrot (Daucus carota). Some are andromonoecious, polygamomonoecious, or even dioecious (as in Acronema), with a distinct calyx and corolla, but the calyx is often highly reduced, to the point of being undetectable in many species, while the corolla can be white, yellow, pink or purple. The flowers are nearly perfectly pentamerous, with five petals, sepals, and stamens. The androecium consists of five stamens, but there is often variation in the functionality of the stamens even within a single inflorescence. Some flowers are functionally staminate (where a pistil may be present but has no ovules capable of being fertilized) while others are functionally pistillate (where stamens are present but their anthers do not produce viable pollen). Pollination of one flower by the pollen of a different flower of the same plant (geitonogamy) is common. The gynoecium consists of two carpels fused into a single, bicarpellate pistil with an inferior ovary. Stylopodia support two styles and secrete nectar, attracting pollinators like flies, mosquitoes, gnats, beetles, moths, and bees. The fruit is a schizocarp consisting of two fused carpels that separate at maturity into two mericarps, each containing a single seed. The fruits of many species are dispersed by wind but others such as those of Daucus spp., are covered in bristles, which may be hooked in sanicle Sanicula europaea[2] and thus catch in the fur of animals. The seeds have an oily endosperm[4][5] and often contain essential oils, containing aromatic compounds that are responsible for the flavour of commercially important umbelliferous seed such as anise, cumin and coriander. The shape and details of the ornamentation of the ripe fruits are important for identification to species level.[3]:802

Systematics

Apiaceae was first described by John Lindley in 1836.[6] The name is derived from the type genus Apium, which was originally used by Pliny the Elder circa 50 AD for a celery-like plant.[7] The alternative name for the family, Umbelliferae, derives from the inflorescence being generally in the form of a compound umbel. The family was one of the first to be recognized as a distinct group in Jacques Daleschamps' 1586 Historia generalis plantarum. With Robert Morison’s 1672 Plantarum umbelilliferarum distribution nova it became the first group of plants for which a systematic study was published.

The family is solidly placed within the Apiales order in the APG III classification system. It is closely related to Araliaceae and the boundaries between these families remain unclear. Traditionally groups within the family have been delimited largely based on fruit morphology, and the results from this have not been congruent with the more recent molecular phylogenetic analyses. The subfamilial and tribal classification for the family is currently in a state of flux, with many of the groups being found to be grossly paraphyletic or polyphyletic.[1]

Genera

According to the Angiosperm Phylogeny Website as of July 2014 434 genera are in the family Apiaceae.[1]

Ecology

The black swallowtail butterfly, Papilio polyxenes, uses the Apiaceae family for food and host plants for oviposition.[9]

Uses

Many members of this family are cultivated for various purposes. Parsnips (Pastinaca sativa), carrots (Daucus carota) and Hamburg parsley (Petroselinum crispum), produce tap roots that are large enough to be useful as food. Many species produce essential oils in their leaves or fruits and as a result are flavourful aromatic herbs. Examples are parsley (Petroselinum crispum), coriander (Coriandrum sativum), culantro, and dill (Anethum graveolens). The seeds may be used in cuisine, as with coriander (Coriandrum sativum), fennel (Foeniculum vulgare), cumin (Cuminum cyminum), and caraway (Carum carvi).

Other notable cultivated Apiaceae include chervil (Anthriscus cerefolium), angelica (Angelica spp.), celery (Apium graveolens), arracacha (Arracacia xanthorrhiza), sea holly (Eryngium spp.), asafoetida (Ferula asafoetida), galbanum (Ferula gummosa), cicely (Myrrhis odorata), anise (Pimpinella anisum), lovage (Levisticum officinale), and hacquetia (Hacquetia epipactis).[4]

Cultivation

Generally, all members of this family are best cultivated in the cool-season garden; indeed, they may not grow at all if the soils are too warm. Almost every widely cultivated plant of this group is a considered useful as a companion plant. One reason is because the tiny flowers clustered into umbels, are well suited for ladybugs, parasitic wasps, and predatory flies, which actually drink nectar when not reproducing. They then prey upon insect pests on nearby plants. Some of the members of this family considered "herbs" produce scents that are believed to ...mask the odours of nearby plants, thus making them harder for insect pests to find.

Other uses

The poisonous members of the Apiaceae have been used for a variety of purposes globally. The poisonous Oenanthe crocata has been used to stupefy fish, Cicuta douglasii has been used as an aid in suicides, and arrow poisons have been made from various other family species.

Daucus carota has been used as coloring for butter.

Dorema ammoniacum, Ferula galbaniflua, and Ferula sumbul are sources of incense.

The woody Azorella compacta Phil. has been used in South America for fuel.

Chemistry

Apiaceae vegetables including carrot, celery, fennel, parsley and parsnip, contain polyynes, an unusual class of organic compounds that show cytotoxic activities.[10][11] Many species contain coumarins or coumarin derivatives, such as furanocoumarins.

See also

References

  1. 1 2 3 Stevens, P.F. (2001 onwards). Angiosperm Phylogeny Website. Version 9, June 2008.
  2. 1 2 Heywood, V.H.; Brummitt, R.K.; Culham, A.; Seberg, O. (2007). Flowering plant families of the world. New York, U.S: Firefly books. ISBN 9781554072064.
  3. 1 2 Stace, C. A. (2010). New Flora of the British Isles (Third ed.). Cambridge, U.K.: Cambridge University Press. p. 88. ISBN 9780521707725.
  4. 1 2 Watson, L., Dallwitz, M.J. (1992 onwards) The families of flowering plants: descriptions, illustrations, identification, and information retrieval Archived 13 December 2010 at the Wayback Machine.. Version: 4 March 2011.
  5. ↑ She, M., Pu, F., Pan, Z., Watson, M., Cannon, J.F.M., Holmes-Smith, I., Kljuykov, E.V., Phillippe, L.R., Pimenov, M.G. (2005). "Apiaceae". Flora of China. 14: 1–205.
  6. ↑ Lindley, J. (1836) An Introduction to the Natural System of Botany, 2nd Edition. Longman, London.
  7. ↑ Michael G. Simpson (20 July 2010). Plant Systematics. Academic Press. ISBN 978-0-12-374380-0. Retrieved 14 April 2012.
  8. ↑ Woodville, W. (1793) Medical Botany. James Phillips, London.
  9. ↑ Hall, Donald W. 2011 "Featured Creatures - Eastern Black Swallowtail." Entomology and Nematology Department, University of Florida. http://entnemdept.ufl.edu/creatures/bfly/bfly2/eastern_black_swallowtail.htm#life
  10. ↑ C. Zidorn, K. Jöhrer, M. Ganzera, B. Schubert, E.M. Sigmund, J. Mader, R. Greil, E.P. Ellmerer and H. Stuppner (2005). "Polyacetylenes from the Apiaceae vegetables carrot, celery, fennel, parsley, and parsnip and their cytotoxic activities.". Journal of Agricultural and Food Chemistry. 53 (7): 2518–2523. doi:10.1021/jf048041s.
  11. ↑ Minto, Robert E.; Blacklock, Brenda J “Biosynthesis and function of polyacetylenes and allied natural products” From Progress in Lipid Research 2008, vol. 47, 233-306. doi:10.1016/j.plipres.2008.02.002

Further reading

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