| 词条 | Caladenia dundasiae |
| 释义 |
| name = Patricia's spider orchid | image = | image_caption = | status_system = DECF | status = P1 | genus = Caladenia | species = dundasiae | authority = Hopper & A.P.Br.[1] | synonyms =* Calonemorchis dundasiae (Hopper & A.P.Br.) D.L.Jones & M.A.Clem.
}} Caladenia dundasiae, commonly known as the Patricia's spider orchid and Dundas spider orchid is a species of orchid endemic to a small area in the south-west of Western Australia. It is a rare orchid with a single hairy leaf and one or two, usually red flowers with thin, stiffly-held lateral sepals and petals. DescriptionCaladenia dundasiae has a single erect, hairy leaf, {{convert|45-150|mm|in|sigfig=1|abbr=on}} long and {{convert|2-4|mm|in|sigfig=1|abbr=on}} wide. One or two flowers {{convert|60-80|mm|in|sigfig=1|abbr=on}} wide are borne on a stalk {{convert|150-350|mm|in|sigfig=1|abbr=on}} high. The flowers are red or sometimes pink or cream-coloured. The dorsal sepal is erect, {{convert|55-65|mm|in|sigfig=1|abbr=on}} long and {{convert|2-3|mm|in|sigfig=1|abbr=on}} wide at the base. The lateral sepals are a similar size to the dorsal sepal but are widely separated and held stiffly at a downward angle. The petals are similar to the lateral sepals but slightly shorter and narrower. The labellum is {{convert|7-10|mm|in|sigfig=1|abbr=on}} long and {{convert|4-6|mm|in|sigfig=2|abbr=on}} wide and red with a white or cream-coloured base and short, forward-facing teeth on its sides. There are two rows of red and white calli along the centre of the labellum. Flowering occurs from July to August.[1][2][3]This species is similar to C. erythrochila but has more stiffly-held and shorter sepals and petals.[2] Taxonomy and namingCaladenia dundasiae was first described by Stephen Hopper and Andrew Brown in 2001 in from a specimen collected near the Watheroo. The description was published in Nuytsia.[4] The specific epithet (dundasiae) honours the botanical artist, Patricia Dundas.[2][5]Distribution and habitatPatricia's spider orchid is only known from a small area near Watheroo where it grows in York gum and wandoo woodland in the Avon Wheatbelt and Geraldton Sandplains biogeographic regions.[1][2][3][6] ConservationCaladenia dundasiae is classified as "Priority One" by the Western Australian Government Department of Parks and Wildlife,[6] meaning that it is known from only one or a few locations which are potentially at risk.[7]References1. ^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=57|edition=3rd}} {{Taxonbar|from=Q9673553}}2. ^1 2 3 {{cite book|last1=Brown|first1=Andrew|last2=Dundas|first2=Pat|last3=Dixon|first3=Kingsley|last4=Hopper|first4=Stephen|title=Orchids of Western Australia|date=2008|publisher=University of Western Australia Press|location=Crawley, Western Australia|isbn=9780980296457|page=58}} 3. ^1 {{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=102}} 4. ^1 {{cite web|title=Caladenia dundasiae|url=https://id.biodiversity.org.au/instance/apni/574366|publisher=APNI|accessdate=27 January 2017}} 5. ^{{cite web|title=Dundas, Patricia (1952 - )|url=http://www.anbg.gov.au/biography/dundas-pat.html|publisher=Australian National Botanic Gardens|accessdate=27 January 2017}} 6. ^1 {{FloraBase|name=Caladenia dundasiae|id=18039}} 7. ^{{cite web|title=Conservation codes for Western Australian Flora and Fauna|url=https://www.dpaw.wa.gov.au/images/documents/plants-animals/threatened-species/Listings/Conservation%20code%20definitions.pdf|publisher=Government of Western Australia Department of Parks and Wildlife|accessdate=27 January 2017}} 7 : Caladenia|Orchids of Western Australia|Endemic orchids of Australia|Plants described in 2001|Endemic flora of Western Australia|Taxa named by Stephen Hopper|Taxa named by Andrew Phillip Brown |
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