词条 | Melaleuca agathosmoides |
释义 |
|status = P1 |status_system = DECF |genus = Melaleuca |species = agathosmoides |authority = C.A.Gardner }} Melaleuca agathosmoides is a shrub in the myrtle family, Myrtaceae and is endemic to a small area in the south-west of Western Australia. It is unusual in the genus in that its flowers appear along long lengths of old wood. DescriptionMelaleuca agathosmoides is usually a shrub growing to a height of {{convert|0.5-2|m|ft|sigfig=1|abbr=on}}. The leaves are glabrous, {{convert|2-5|mm|in|sigfig=1|abbr=on}} long and decussate (arranged in alternating pairs).[1][2]The flowers are ramiflorous, that is they grow along lengths of old wood rather than at the ends of branches or in the axils of leaves, singly or in groups of up to 20. The stamens are grouped in five bundles around the flower, each bundle containing 12 to 19 stamens. The cup-shaped base of the flower (the hypanthium) is glabrous, {{convert|1.8-2.5|mm|in|sigfig=1|abbr=on}} long. The flowers are cream or white to greenish-white and appear between July and November. The fruit are woody capsules, {{convert|3.5–4.5|mm|in|sigfig=1|abbr=on}} long, with the sepals remaining as teeth around the fruits.[1][2] Taxonomy and namingMelaleuca agathosmoides was first formally described in 1939 by Charles Austin Gardner from a specimen collected in the Coolgardie District at "Hatter's Hill, north of Ravensthorpe, in red loamy gravelly soil, [flowering] Sept. 1929".[3] The specific epithet (agathosmoides) is a reference to its similarity to plants in the genus Agathosma.[1]Distribution and habitatThis melaleuca is restricted to the Lake King district of Western Australia in the Mallee biogeographic region. It grows in gravelly, red clay loam on hills.[4][5] ConservationMelaleuca agathosmoides is classified as "Priority One" by the Government of Western Australia Department of Parks and Wildlife,[4] meaning that it is known from only one or a few locations which are potentially at risk.[6]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=71}} {{Wikispecies}}{{Taxonbar|from=Q15370773}}2. ^1 {{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=276|edition=2nd}} 3. ^{{cite web|title=Melaleuca agathosmoides|url= https://biodiversity.org.au/boa/instance/apni/485135|publisher=APNI|accessdate=23 July 2015}} 4. ^1 {{FloraBase|name=Melaleuca agathosmoides C.A.Gardner|id = 5871}} 5. ^{{cite book|last1=Paczkowska|first1=Grazyna|last2=Chapman|first2=Alex R.|title=The Western Australian flora : a descriptive catalogue|page=391|date=2000|publisher=Wildflower Society of Western Australia|location=Perth|isbn=0646402439}} 6. ^{{cite web|title=Conservation codes for Western Australian Flora and Fauna|url=http://www.dpaw.wa.gov.au/images/documents/plants-animals/threatened-species/Listings/conservation_code_definitions.pdf|publisher=Government of Western Australia Department of Parks and Wildlife|accessdate=1 May 2015}} 5 : Melaleuca|Myrtales of Australia|Plants described in 1939|Rosids of Western Australia|Endemic flora of Western Australia |
随便看 |
开放百科全书收录14589846条英语、德语、日语等多语种百科知识,基本涵盖了大多数领域的百科知识,是一部内容自由、开放的电子版国际百科全书。