| 词条 | Corybas despectans |
| 释义 |
| name = Tiny helmet orchid | status_system = | status = | taxon= Corybas despectans | image= Corybas despectans flower.jpg | image_caption= Corybas despectans growing near Albany | authority=D.L.Jones & R.C.Nash[1] | synonyms_ref =[1] | synonyms = * Corysanthes despectans (D.L.Jones & R.C.Nash) D.L.Jones & M.A.Clem. }} Corybas despectans, commonly known as the tiny helmet orchid[3] or sandhill helmet orchid[4] is a species of terrestrial orchid endemic to southern Australia. It has round or heart-shaped leaf and a tiny reddish purple flower. Unlike many others in the genus, the dorsal sepal does not cover the labellum. It is similar to C. incurvus but the flowers are smaller. DescriptionCorybas despectans is a terrestrial, perennial, deciduous, herb with a single round or heart-shaped leaf {{convert|8-25|mm|in|sigfig=1|abbr=on}} long and {{convert|12-30|mm|in|sigfig=1|abbr=on}} wide. The leaf is green on the upper surface and silvery green on the lower side. There is a single erect, reddish purple flower with green or translucent areas, {{convert|7-12|mm|in|sigfig=1|abbr=on}} long and {{convert|9-11|mm|in|sigfig=2|abbr=on}} wide. The dorsal sepal is greenish grey, erect in the lower part then curves, {{convert|6-11|mm|in|sigfig=1|abbr=on}} long and {{convert|3-4|mm|in|sigfig=1|abbr=on}} wide and does not usually completely cover the labellum. The lateral sepals are about {{convert|5|mm|in|sigfig=1|abbr=on}} long, {{convert|1|mm|in|sigfig=1|abbr=on}} wide and joined at their bases before tapering to a fine tip. The petals are about {{convert|2|mm|in|sigfig=1|abbr=on}} long, {{convert|1|mm|in|sigfig=1|abbr=on}} wide, widest at the base then tapering to a thread-like tip. The labellum is longer than the dorsal sepal, {{convert|7-8|mm|in|sigfig=2|abbr=on}} long, {{convert|9-11|mm|in|sigfig=2|abbr=on}} wide and reddish with obvious veins. Flowering occurs from June to September.[2][3][4][5][6]TaxonomyCorybas despectans was first formally described in 1976 by David Jones and R.C. Nash from a specimen collected near Warooka and the description was published in Muelleria.[7] The specific epithet (despectans) is a Latin word meaning "look down upon".[8]In 2002, David Jones and Mark Clements proposed splitting Corybas into smaller genera and placing this species into Corysanthes but the change has not been widely accepted.[9] Distribution and habitatThe tiny helmet orchid forms colonies in forests and scrubland and is very common in some places. It occurs disjunctly in western Victoria and on the Mornington Peninsula, in the south-east of South Australia including Kangaroo Island and in Western Australia between Bunbury and Israelite Bay.[2][3][6][10] References1. ^1 {{WCSP | 47701 | Corybas despectans }} {{Taxonbar|from=Q15433675}}2. ^1 2 {{cite book|last1=Jones|first1=David L.|title=A complete guide to native orchids of Australia including the island territories|date=2006|publisher=New Holland|location=Frenchs Forest, N.S.W.|isbn=1877069124|page =170}} 3. ^1 2 {{cite book|last1=Brown|first1=Andrew|last2=Dixon|first2=Kingsley|last3=French|first3=Christopher|last4=Brockman|first4=Garry|title=Field guide to the orchids of Western Australia : the definitive guide to the native orchids of Western Australia|date=2013|publisher=Simon Nevill Publications|isbn=9780980348149|page=172}} 4. ^{{cite journal|last1=Jones|first1=David L.|last2=Nash|first2=R.C.|title=A new Corybas species from South Australia|journal=Muelleria|date=1976|volume=3|issue=3|pages=165–167|url=https://www.rbg.vic.gov.au/documents/Muelleria_3(3),_p165-167,_Jones__Nash,_Corybas.pdf|accessdate=7 May 2018}} 5. ^{{cite web|last1=Jeanes|first1=Jeff|title=Corybas despectans|url=https://vicflora.rbg.vic.gov.au/flora/taxon/29bc7c58-f31c-47c2-addf-dde865072d34|publisher=Royal Botanic Gardens Victoria|accessdate=7 May 2018}} 6. ^1 {{cite book|last1=Hoffman|first1=Noel|last2=Brown|first2=Andrew|title=Orchids of South-West Australia.|date=2011|publisher=Noel Hoffman|location=Gooseberry Hill|isbn=9780646562322|page=277|edition=3rd}} 7. ^{{cite web|title=Corybas despectans|url=https://id.biodiversity.org.au/instance/apni/498351 |publisher=APNI|accessdate=7 May 2018}} 8. ^{{cite book|last1=Brown|first1=Roland Wilbur|title=The Composition of Scientific Words|date=1956|publisher=Smithsonian Institution Press|location=Washington, D.C.|page=398}} 9. ^{{Citation |last=Jones |first=D.L.|year=2002 |title=Nomenclatural notes arising from studies into the tribe Diurideae (Orchidaceae) |journal=Orchadian |volume=13 |pages=436–468}} 10. ^{{FloraBase|name=Corybas despectans |id=1624}} 7 : Acianthinae|Corybas|Endemic orchids of Australia|Orchids of South Australia|Orchids of Western Australia|Orchids of Victoria (Australia)|Plants described in 1976 |
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