| 词条 | Calothamnus aridus |
| 释义 |
|image = |genus = Calothamnus |species = aridus |authority = Hawkeswood |synonyms =Melaleuca arida (Hawkeswood) Craven & R.D.Edwards }}Calothamnus aridus is a plant in the myrtle family, Myrtaceae and is endemic to central parts of Western Australia. It is an erect, densely branched shrub with many stems, needle-like leaves and orange-red to pinkish flowers, growing in arid areas with spinifex. (In 2014 Craven, Edwards and Cowley proposed that the species be renamed Melaleuca arida.)[1] DescriptionCalothamnus aridus grows to a height of about {{convert|2.5|m|ft|sigfig=1}}, has many stems and is highly branched. Its leaves are needle-like, mostly {{convert|7-10|mm|in|sigfig=1}} long, {{convert|0.6-1.2|mm|in|sigfig=1}} wide and have distinct oil glands.[2]The flowers are arranged in clusters or loose spikes of up to 10 on the younger stems. The five petals are {{convert|3-5|mm|in|sigfig=1}} long, egg-shaped, dished, thin and covered with short hairs. The stamens are arranged in five claw-like bundles, each {{convert|1.0-1.5|mm|in|sigfig=1}} with 10 to 12 stamens per bundle. The stamens are a shade of orange to red in the lower part and pinkish red near the ends and tipped with yellow anthers. Flowering occurs between August and October and is followed by fruits which are woody capsules, {{convert|4-8|mm|in|sigfig=2}} long, {{convert|5-8|mm|in|sigfig=1}} in diameter and shaped like flattened spheres.[2] Taxonomy and namingCalothamnus aridus was first formally described in 1984 by Trevor Hawkeswood from a specimen found about {{convert|40|km|mi|sigfig=1}} south west of Wiluna.[2][3] The specific epithet (aridus) is a Latin word meaning "dry" or "parched"[4] referring to the habitat.[2]Distribution and habitatCalothamnus aridus occurs in and between the Paynes Find, Sandstone and Wiluna districts in the Avon Wheatbelt, Little Sandy Desert and Murchison biogeographic regions.[5] It grows in woodland and sandplain in association with Triodia species.[2][5]ConservationCalothamnus aridus is classified as "not threatened" by the Western Australian government department of parks and wildlife.[5]References1. ^{{cite journal|last1=Craven|first1=Lyn A.|last2=Edwards|first2=Robert D.|last3=Cowley|first3=Kirsten J.|title=New combinations and names in Melaleuca (Myrtaceae)|journal=Taxon|date=30 June 2014|volume=63|issue=3|page=665|doi=10.12705/633.38|url=http://www.ingentaconnect.com/content/iapt/tax/2014/00000063/00000003/art00017|accessdate=23 July 2015}} {{Taxonbar|from=Q15396189}}2. ^1 2 3 4 {{cite journal|last1=Hawkeswood|first1=Trevor J.|title=Nine new species of Calothamnus Labill. (Myrtaceae: Leptospermoideae) from Western Australia|journal=Nuytsia|date=1984|volume=5|issue=1|pages=145–146|url=https://florabase.dpaw.wa.gov.au/science/nuytsia/99.pdf|accessdate=23 July 2015}} 3. ^{{cite web|title=Calothamnus aridus|url=https://biodiversity.org.au/boa/instance/apni/526907|publisher=APNI|accessdate=23 July 2015}} 4. ^{{cite web|title=aridus|url=https://en.wiktionary.org/wiki/aridus|publisher=Wiktionary|accessdate=23 July 2015}} 5. ^1 2 {{cite web|title=Calothamnus aridus|url=https://florabase.dpaw.wa.gov.au/browse/profile/5398|publisher=FloraBase|accessdate=23 July 2015}} 5 : Calothamnus|Myrtales of Australia|Flora of Western Australia|Plants described in 1984|Endemic flora of Western Australia |
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