| 词条 | Caladenia audasii |
| 释义 |
| image = | image_caption = | status_system = EPBC | status = EN | genus = Caladenia | species = audasii | authority = R.S.Rogers[1] | synonyms_ref = [1] | synonyms =
}} Caladenia audasii is a plant in the orchid family Orchidaceae and is endemic to Victoria. It is a rare ground orchid with a single hairy leaf and a single yellow flower. DescriptionCaladenia audasii is a terrestrial, perennial, deciduous, herb with an underground tuber and a single hairy leaf, {{convert|5-10|cm|in|sigfig=1|abbr=on}} long and {{convert|6-10|mm|in|sigfig=1|abbr=on}} wide.[1]A single yellow flower {{convert|9|cm|in|sigfig=1|abbr=on}} in diameter is borne on a spike {{convert|11-19|cm|in|sigfig=1|abbr=on}} high. The petals and sepals are {{convert|3-6|cm|in|sigfig=1|abbr=on}} long and spreading, the petals somewhat shorter than the sepals. The petals and lateral sepals are {{convert|4-5|mm|in|sigfig=2|abbr=on}} wide and taper to a thread-like end covered with glandular hairs. The labellum is curved with the tip rolled under and has erect lateral lobes. It is about {{convert|18|mm|in|sigfig=1|abbr=on}} long and {{convert|10|mm|in|sigfig=1|abbr=on}} wide when flattened. The edges of the labellum are scalloped and the middle lobe has short, broad teeth. There are six rows of stalkless calli along the centre of the labellum. Flowering occurs from September to November.[1][2] Taxonomy and namingThe species was first formally described by Richard Rogers in 1927 and the description was published in Transactions and Proceedings of the Royal Society of South Australia. The type specimen was collected on Mount McIvor near Bendigo.[3][2] The specific epithet (audasii) honours James Wales Clarendon Audas, a member of staff at the National Herbarium of Victoria.[4] Distribution and habitatOnly five plants of this orchid species were known in 2000, growing in grassy Box–ironbark forest in three disjunct populations near Bendigo, Kingower and Deep Lead north-west of Stawell. It is extinct in South Australia.[5] In June 2015, thirty new plants were introduced into the Greater Bendigo National Park.[6] ConservationThis species is classified as "Endangered" under the Commonwealth Government Environment Protection and Biodiversity Conservation Act 1999 (EPBC) Act.[5] References1. ^1 {{cite web|last1=Jeanes|first1=Jeffrey|title=Caladenia audasii|url=https://vicflora.rbg.vic.gov.au/flora/taxon/b73072ca-0de0-4a08-8f07-127c5cc1e1c2|publisher=Royal Botanic Gardens Victoria: Vicflora|accessdate=28 September 2016}} {{Taxonbar|from=Q9673338}}2. ^1 {{cite journal|last1=Rogers|first1=Richard Sanders|title=Contributions to the Orchidology of Australia|journal=Transactions and Proceedings of the Royal Society of South Australia|date=1927|volume=51|pages=295–296|url=https://www.biodiversitylibrary.org/item/129843#page/312/mode/1up|accessdate=5 October 2016}} 3. ^1 2 {{cite web|title=Caladenia audasii|url= https://id.biodiversity.org.au/instance/apni/512341|publisher=APNI|accessdate=28 September 2016}} 4. ^{{cite web|title=Audas, James Wales Clarendon (1872 - 1959)|url=http://www.anbg.gov.au/biography/audas-james.html|publisher=Council of the Heads of Australian Herbaria|accessdate=5 October 2016}} 5. ^1 {{cite web|last1=Todd|first1=James A.|title=Recovery Plan for twelve threatened spider orchid Caladenia R.Br. taxa of Victoria and South Australia 2000 - 2004|url=http://www.environment.gov.au/system/files/resources/5673cd4d-1802-4927-85e5-4bdbf947ba58/files/12-orchid.pdf|publisher=Government of Victoria Department of Natural Resources and Environment|accessdate=5 October 2016}} 6. ^{{cite web|title=Rare spider orchids spin their web around the goldfields|url=http://delwp.vic.gov.au/news-and-announcements/rare-spider-orchids-spin-their-web-around-the-goldfields|publisher=Victorian Government Department of Environment, Land, Water and Planning|accessdate=5 October 2016}} 5 : Caladenia|Plants described in 1927|Endemic orchids of Australia|Orchids of Victoria (Australia)|Taxa named by Richard Sanders Rogers |
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