Myrtaceae: Wikis

  
  
  

Note: Many of our articles have direct quotes from sources you can cite, within the Wikipedia article! This article doesn't yet, but we're working on it! See more info or our list of citable articles.

Encyclopedia

From Wikipedia, the free encyclopedia

Myrtle family
Myrtus communis foliage and flowers
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta
Class: Magnoliopsida
Order: Myrtales
Family: Myrtaceae
Juss.
Genera

About 130; see list

The Myrtaceae or Myrtle family are a family of dicotyledon plants, placed within the order Myrtales. Myrtle, clove, guava, feijoa, allspice, and eucalyptus belong here. All species are woody, with essential oils, and flower parts in multiples of four or five. One notable character of the family is that the phloem is located on both sides of the xylem, not just outside as in most other plants. The leaves are evergreen, alternate to mostly opposite, simple, and usually with an entire (not toothed) margin. The flowers have a base number of five petals, though in several genera the petals are minute or absent. The stamens are usually very conspicuous, brightly coloured and numerous.

Recent estimates suggest that Myrtaceae has over 5650 species (Govaerts et al. 2008), occurring in some 130-150 genera. The family has a wide distribution in tropical and warm-temperate regions of the world, and are typically common in many of the world's biodiversity hotspots. Genera with capsular fruits such as Eucalyptus, Corymbia, Angophora, Leptospermum, Melaleuca, Metrosideros are absent from the Americas, apart from the monotypic genus Tepualia in Chile and Argentina. Genera with fleshy fruits have their greatest concentrations in eastern Australia and Malesia (the Australasia ecozone) and the Neotropics. Eucalyptus is a dominant, nearly ubiquitous genus in the more mesic parts of Australia and extends north sporadically to the Philippines. Eucalyptus regnans is the tallest flowering plant in the world. Other important Australian genera are Callistemon (bottlebrushes), Syzygium, and Melaleuca (paperbarks). The genus Osbornia, native to Australasia, are mangroves. Eugenia, Myrcia, and Calyptranthes are among the larger genera in the neotropics.

Historically, the Myrtaceae were divided into two subfamilies. Subfamily Myrtoideae (ca. 75 genera) was recognized as having fleshy fruits and opposite, entire leaves. Most genera in this subfamily have one of three easily recognized types of embryos. The genera of Myrtoideae can be very difficult to distinguish in the absence of mature fruits. The Myrtoideae are found worldwide in subtropical and tropical regions, with centres of diversity in the Neotropics, northeastern Australia, and Malesia. In contrast, Subfamily Leptospermoideae (ca. 80 genera) were recognized as having dry, dehiscent fruits (capsules) and leaves arranged spirally or alternate. The Leptospermoideae are found mostly in Australasia, with a centre of diversity in Australia. Many genera in Western Australia have greatly reduced leaves and flowers typical of more xeric habitats.

The division of the Myrtaceae into the Leptospermoideae and Myrtoideae was challenged by a number of authors, including Johnson and Briggs (1984), who identified 14 tribes or clades within the Myrtaceae, and found the Myrtoideae to be polyphyletic. Molecular studies by several groups of authors, as of 2008, have confirmed that the baccate (fleshy) fruits evolved twice from capsular fruits, and as such the two subfamily classification does not accurately portray the phylogenetic (=evolutionary) history of the family. Thus many workers are now using a recent analysis by Wilson et al. (2001) as a starting point to test further analyses of the family.

The genera Heteropyxis and Psiloxylon have been separated as separate families by many authors in the past as Heteropyxidaceae and Psiloxylaceae. However, Wilson et al. (2001) included Heteropyxis and Psiloxylon in Myrtaceae. These two genera are presently believed to be the earliest arising and surviving lineages of Myrtaceae.

Many new species are being described annually from throughout the range of Myrtaceae. Likewise, new genera are being described nearly yearly.

Genera

References

  • Govaerts, R. et al. (12 additional authors). 2008. World Checklist of Myrtaceae. Royal Botanic Gardens, Kew. xv + 455 pp.
  • Johnson, L.A.S. and Briggs, B.G. 1984. Myrtales and Myrtaceae – a phylogenetic analysis. Annals of the Missouri Botanic Garden 71: 700-756.
  • Wilson, Peter G., O'Brien, Marcelle M., Gadek, Paul A., and Quinn, Christopher J. 2001. "Myrtaceae Revisited: A Reassessment of Infrafamilial Groups". American Journal of Botany 88 (11): 2013–2025. Available online (pdf file).
  • Sytsma, Kenneth J. and Amy Litt. 2002. Tropical disjunctions in and among the Myrtaceae clade (Myrtaceae, Heteropyxidaceae, Psiloxylaceae, Vochysiaceae): Gondwanan vicariance or dispersal? (Abstract). Botany 2002 Conference, University of Wisconsin, Madison, Wisconsin, August 4-7 2002.

External links


Wiktionary

Up to date as of January 15, 2010

Definition from Wiktionary, a free dictionary

Contents

Translingual

Etymology

See myrtle

Proper noun

Wikipedia-logo.png
Wikipedia has an article on:

Wikipedia

Myrtaceae

  1. (botany) A taxonomic family, within order Myrtales - many dicotyledonous plants that yield a fragrant oil - including myrtle, clove, guava, feijoa, allspice, and eucalyptus.
Wikispecies-logo.svg
Wikispecies has information on:

Wikispecies

See also

  • See Wikispecies for the many species

Wikispecies

Up to date as of January 23, 2010

From Wikispecies

Taxonavigation

Classification System: APG II (down to family level)

Main Page
Cladus: Eukaryota
Regnum: Plantae
Cladus: Angiospermae
Cladus: Eudicots
Cladus: core eudicots
Cladus: Rosids
Cladus: Eurosids I
Ordines: Unassigned Eurosids I
Cladus: Unassigned Rosids
Ordo: Myrtales
Familia: Myrtaceae
Subfamiliae: Myrtoideae - Psiloxyloideae
Genera: Acca - Accara - Acmena - Acmenosperma - Actinodium - Agonis - Allosyncarpia - Amomyrtella - Amomyrtus - Angasomyrtus - Angophora - Archirhodomyrtus - Arillastrum - Astartea - Asteromyrtus - Austromyrtus - Backhousia - Baeckea - Balaustion - Barongia - Basisperma - Beaufortia - Blepharocalyx - Callistemon - Calothamnus - Calycolpus - Calycorectes - Calyptranthes - Calyptrogenia - Calythropsis - Calytrix - Campomanesia - Carpolepis - Chamelaucium - Chamguava - Choricarpia - Cleistocalyx - Cloezia - Conothamnus - Corynanthera - Cupheanthus - Darwinia - Decaspermum - Eremaea - Eucalyptopsis - Eucalyptus - Eugenia - Gomidesia - Heteropyxis - Hexachlamys - Homalocalyx - Homalospermum - Homoranthus - Hottea - Hypocalymma - Kania - Kjellbergiodendron - Kunzea - Lamarchea - Legrandia - Leptospermum - Lindsayomyrtus - Lophomyrtus - Lophostemon - Luma - Lysicarpus - Malleostemon - Marlierea - Melaleuca - Meteoromyrtus - Metrosideros - Micromyrtus - Mitranthes - Mitrantia - Monimiastrum - Mosiera - Myrceugenia - Myrcia - Myrcianthes - Myrciaria - Myrrhinium - Myrtastrum - Myrtella - Myrteola - Myrtus - Neofabricia - Neomitranthes - Neomyrtus - Ochrosperma - Octamyrtus - Osbornia - Paramyrciaria - Pericalymma - Phymatocarpus - Pileanthus - Pilidiostigma - Piliocalyx - Pimenta - Pleurocalyptus - Plinia - Pseudanamomis - Psidium - Psiloxylum - Purpureostemon - Regelia - Rhodamnia - Rhodomyrtus - Rinzia - Ristantia - Scholtzia - Siphoneugena - Sphaerantia - Stereocaryum - Syncarpia - Syzygium - Taxandria - Tepualia - Thryptomene - Tristania - Tristaniopsis - Ugni - Uromyrtus - Verticordia - Waterhousea - Welchiodendron - Whiteodendron - Xanthomyrtus - Xanthostemon

Name

Myrtaceae Adans.

Synonyms

References

  • Stevens, P. F. (2001 onwards). Angiosperm Phylogeny Website. Version 6, May 2005. [1]
  • Royal Botanic Gardens, Kew: Vascular Plant Families and Genera[2]

Vernacular names

Nederlands: Mirteachtigen
Русский: Миртовые
Türkçe: Mersingiller
Українська: Миртові
中文: 桃金孃科
Wikimedia Commons For more multimedia, look at Myrtaceae on Wikimedia Commons.

Simple English

Myrtle family
File:Myrtus
Myrtus communis foliage and flowers
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta
Class: Magnoliopsida
Order: Myrtales
Family: Myrtaceae
Juss.
Genera

About 130; see list

The Myrtaceae or Myrtle family are a family of dicotyledon plants, placed within the order Myrtales. Myrtle, clove, guava, feijoa, allspice, and eucalyptus belong here. All species are woody, with essential oils, and flower parts in multiples of four or five. One notable character of the family is that the phloem is located on both sides of the xylem, not just outside as in most other plants. The leaves are evergreen, alternate to mostly opposite, simple, and usually with an entire (not toothed) margin. The flowers have a base number of five petals, though in several genera the petals are minute or absent. The stamens are usually very conspicuous, brightly colored and numerous.

Genera

  • Accara
  • Acmena
  • Acmenosperma
  • Actinodium
  • Agonis
  • Allosyncarpia
  • Amomyrtella
  • Amomyrtus
  • Angasomyrtus
  • Angophora
  • Archirhodomyrtus
  • Arillastrum
  • Astartea
  • Asteromyrtus
  • Austromyrtus
  • Backhousia
  • Baeckea
  • Balaustion
  • Barongia
  • Basisperma
  • Beaufortia
  • Blepharocalyx
  • Callistemon
  • Calothamnus
  • Calycolpus
  • Calycorectes
  • Calyptranthes
  • Calyptrogenia
  • Calythropsis
  • Calytrix
  • Campomanesia
  • Carpolepis
  • Chamelaucium
  • Chamguava
  • Choricarpia
  • Cleistocalyx
  • Cloezia
  • Conothamnus
  • Corymbia
  • Corynanthera
  • Cupheanthus
  • Curitiba
  • Darwinia
  • Decaspermum
  • Eremaea
  • Eucalyptopsis
  • Eucalyptus
  • Eugenia
  • Feijoa (syn. Acca)
  • Gomidesia
  • Gossia
  • Hexachlamys
  • Homalocalyx
  • Homalospermum
  • Homoranthus
  • Hottea
  • Hypocalymma
  • Kania
  • Kjellbergiodendron
  • Kunzea
  • Lamarchea
  • Legrandia
  • Lenwebbia
  • Leptospermum
  • Lindsayomyrtus
  • Lithomyrtus
  • Lophomyrtus
  • Lophostemon
  • Luma
  • Lysicarpus
  • Mallostemon
  • Marlierea
  • Melaleuca
  • Meteoromyrtus
  • Metrosideros
  • Micromyrtus
  • Mitranthes
  • Mitrantia
  • Monimiastrum
  • Mosiera
  • Myrceugenia
  • Myrcia
  • Myrcianthes
  • Myrciaria
  • Myrrhinium
  • Myrtastrum
  • Myrtella
  • Myrteola
  • Myrtus
  • Neofabricia
  • Neomitranthes
  • Neomyrtus
  • Ochrosperma
  • Octamyrtus
  • Osbornia
  • Paramyrciaria
  • Pericalymma
  • Phymatocarpus
  • Pileanthus
  • Pilidiostigma
  • Piliocalyx
  • Pimenta
  • Pleurocalyptus
  • Plinia
  • Pseudanamomis
  • Psidium
  • Purpureostemon
  • Regelia
  • Rhodamnia
  • Rhodomyrtus
  • Rinzia
  • Ristantia
  • Scholtzia
  • Seorsus
  • Siphoneugena
  • Sphaerantia
  • Stereocaryum
  • Stockwellia
  • Syncarpia
  • Syzygium
  • Taxandria
  • Tepualia
  • Thryptomene
  • Tristania
  • Tristaniopsis
  • Ugni
  • Uromyrtus
  • Verticordia
  • Waterhousea
  • Welchiodendron
  • Whiteodendron
  • Xanthomyrtus
  • Xanthostemon
Error creating thumbnail: sh: convert: command not found
Look up Myrtaceae in Wikispecies, a directory of species








Got something to say? Make a comment.
Your name
Your email address
Message