| 词条 | Melaleuca tortifolia |
| 释义 |
|image = Melaleuca tortifolia (3).jpg |image_caption = Melaleuca tortifolia leaves, flowers and fruit |genus = Melaleuca |species = tortifolia |authority = Byrnes }} Melaleuca tortifolia is a plant in the myrtle family, Myrtaceae and is endemic to a small area on the Northern Tablelands of New South Wales in Australia. It has egg-shaped, twisted leaves and heads, or short spikes of white or creamy-white flowers in December. It is classified as a threatened species. DescriptionMelaleuca tortifolia is a shrub growing to about {{convert|3|m|ft|sigfig=1|abbr=on}} tall. Its leaves are arranged in more or less opposite pairs and are {{convert|8-15|mm|in|sigfig=1|abbr=on}} long, {{convert|2-4.5|mm|in|sigfig=1|abbr=on}} wide, egg-shaped with the end tapering to a point. The leaves are flat but usually twisted, with 3 to 5 longitudinal veins.[1][2]The flowers are white, pale cream or pink in colour and are arranged in heads or short spikes on the ends of branches that continue to grow after flowering. The heads contain 2 to 10 groups of flowers in threes and are up to {{convert|23|mm|in|sigfig=1|abbr=on}} in diameter but sometimes the flowers may be in small groups of individual flowers. The petals are {{convert|2-3|mm|in|sigfig=1|abbr=on}} long and fall off as the flower ages. The stamens are in five bundles around the flowers, each bundle containing 10 to 16 stamens. Flowering usually occurs in December and is followed by the fruit which are woody, almost spherical capsules {{convert|4-5|mm|in|sigfig=2|abbr=on}} in diameter.[1][2][3] Taxonomy and namingMelaleuca tortifolia was first formally described in 1984 by Norman Byrnes in Austrobaileya.[4] The specific epithet (tortifolia) is from the Latin tortus meaning "twist" or "turn"[5]{{rp|821}} and folium meaning "a leaf"[5]{{rp|466}} referring to the often twisted leaves.[1]Distribution and habitatMelaleuca tortifolia is only known from Barren Mountain near Ebor where it grows in heath in wet places.[2]ConservationMelaleuca tortifolia is a threatened species listed as 2Rc-t in the ROTAP[2] classification, meaning that it is rare but without any identifiable threat, and all the known individual plants are in a conservation reserve.[6]GalleryReferences1. ^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=364}} {{Taxonbar|from=Q15372215}}2. ^1 2 3 {{cite web|title=Melaleuca tortifolia|url=http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Melaleuca~tortifolia|publisher=Royal botanic garden Sydney: plantnet|accessdate=27 April 2015}} 3. ^{{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=52|edition=2nd}} 4. ^{{cite web|title=Melaleuca tortifolia|url= https://biodiversity.org.au/boa/instance/apni/545119|publisher=APNI|accessdate=27 April 2015}} 5. ^1 {{cite book|last1=Brown|first1=Roland Wilbur|title=The Composition of Scientific Words|date=1956|publisher=Smithsonian Institution Press|location=Washington, D.C.}} 6. ^{{cite book|last1=Briggs|first1=John D.|last2=Leigh|first2=John H.|title=Rare or threatened Australian plants|date=1995|publisher=CSIRO|location=Collingwood, Victoria|isbn=0643057986|edition=1995 (revised)|url=https://books.google.com/?id=bD6pi_CC6CsC&pg=PT249#v=onepage&q=Rare&f=false|accessdate=27 April 2015}} 4 : Melaleuca|Myrtales of Australia|Flora of Western Australia|Plants described in 1984 |
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