| 词条 | Melaleuca arcana |
| 释义 |
|genus = Melaleuca |species = arcana |authority = S.T.Blake }} Melaleuca arcana is a small tree or large shrub in the myrtle family, Myrtaceae and is endemic to Cape York Peninsula in northern Australia. It has papery bark and small heads of white flowers in summer. DescriptionMelaleuca arcana grows to a height of {{convert|0.5-15|m|ft|sigfig=1|abbr=on}} and has whitish, papery bark. Its leaves are arranged alternately, {{convert|23-75|mm|in|sigfig=1|abbr=on}} long, {{convert|7-26|mm|in|sigfig=1|abbr=on}} wide, broadly egg-shaped with a blunt tip and with 5 to 11 parallel veins.[1]The flowers are white or cream, sometimes pinkish and arranged in heads on the ends of branches which continue to grow after flowering and in the upper leaf axils. The heads are up to {{convert|18|mm|in|sigfig=1|abbr=on}} in diameter and contain between 5 and 11 groups of flowers in threes. The stamens are arranged in 5 bundles around the flowers and each bundle contains 6 to 9 stamens. Flowering occurs unpredictably throughout the year and is followed by fruit which are woody capsules {{convert|2.5-4|mm|in|sigfig=1|abbr=on}} long, arranged in cylindrical spikes. The seeds are released within a year when the fruits are mature.[1][2] Taxonomy and namingThe species was first formally described in 1968 by Stanley Thatcher Blake from a specimen collected north-west of Cooktown and west of Cape Bedford in Three Islands National Park. The specific epithet (arcana) is from the Latin arcanus, meaning "hidden", "secret" or "private"[3] in reference to the species' apparent rarity.[1] Distribution and habitatMelaleuca incana occurs on the east coast of Cape York Peninsula in the swales between sand dunes.[4]ConservationThis melaleuca has the status "of least concern" in the Government of Queensland Nature Conservation Act 1992.[5] UsesAgroforestryThis species is useful for sand stabilisation in coastal areas and it is a good source of honey.[6] TimberThe wood can be used for posts and railway ties.[6] HorticultureIn some situations this species may be preferable to Melaleuca leucadendron as a street tree because of its smaller size at maturity. It has been grown as far south as Brisbane.[7] References1. ^1 2 {{cite book|last1=Brophy|first1=Joseph J.|last2=Craven|first2=Lyndley A.|last3=Doran|first3=John C.|title=Melaleucas : their botany, essential oils and uses|date=2013|publisher=Australian Centre for International Agricultural Research|location=Canberra|isbn=9781922137517|page=78}} {{Taxonbar|from=Q15369934}}2. ^{{cite book|last1=Holliday|first1=Ivan|title=Melaleucas : a field and garden guide|date=2004|publisher=Reed New Holland Publishers|location=Frenchs Forest, N.S.W.|isbn=1876334983|page=68|edition=2nd}} 3. ^{{cite book|last1=Brown|first1=Roland Wilbur|title=The Composition of Scientific Words|date=1956|publisher=Smithsonian Institution Press|location=Washington, D.C.|page = 691}} 4. ^{{cite web|title=Melaleuca arcana|url=https://biodiversity.org.au/boa/instance/apni/508811|publisher=APNI|accessdate=10 March 2015}} 5. ^{{cite web|title=Melaleuca arcana|url=http://wetlandinfo.ehp.qld.gov.au/wetlands/ecology/components/species/?melaleuca-arcana|publisher=Wetlandinfo; Department of Environment and Heritage protection|accessdate=30 April 2015}} 6. ^1 {{cite web|title=Useful tropical plants: Melaleuca incana|url=http://tropical.theferns.info/viewtropical.php?id=Melaleuca+arcana|accessdate=10 March 2015}} 7. ^{{cite book|last1=Wrigley|first1=John W.|last2=Fagg|first2=Murray|title=Australian native plants : a manual for their propagation, cultivation and use in landscaping|date=1983|publisher=Collins|location=Sydney|isbn=0002165759|edition=2nd}} 4 : Melaleuca|Myrtales of Australia|Flora of Queensland|Plants described in 1968 |
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