| 词条 | Caladenia longicauda subsp. clivicola |
| 释义 |
| name = Darling Scarp white spider orchid | image = Caladenia longicauda clivicola 01.jpg | image_caption = Caladenia longicauda subsp. clivicola growing near Dunsborough | genus = Caladenia | species = longicauda | subspecies = clivicola | authority = Hopper & A.P.Br. | synonyms_ref = [1] | synonyms = Arachnorchis longicauda subsp.clivicola (Hopper & A.P.Br.) D.L.Jones & M.A.Clem. }} Caladenia longicauda subsp. clivicola, commonly known as the Darling Scarp white spider orchid,[2] or hills white spider orchid[3] is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single hairy leaf and up to three mostly white flowers with long, drooping lateral sepals and petals, a relatively small, narrow labellum and narrow labellum teeth. It grows in a restricted area, mostly on the Darling Scarp. DescriptionCaladenia longicauda subsp. clivicola is a terrestrial, perennial, deciduous, herb with an underground tuber and a single hairy leaf, {{convert|120-250|mm|in|sigfig=1|abbr=on}} long and {{convert|6-12|mm|in|sigfig=1|abbr=on}} wide. Up to three, mostly white flowers {{convert|100-150|mm|in|sigfig=1|abbr=on}} long and {{convert|70-100|mm|in|sigfig=1|abbr=on}} wide are borne on a spike {{convert|300-500|mm|in|sigfig=1|abbr=on}} tall. The lateral sepals and petals have long drooping tips. The dorsal sepal is erect and the labellum is mostly white, {{convert|15-25|mm|in|sigfig=1|abbr=on}} long and {{convert|7-10|mm|in|sigfig=1|abbr=on}} with narrow teeth up to {{convert|5|mm|in|sigfig=1|abbr=on}} long on its sides. There are four or more rows of small, pale red calli up to {{convert|1.5|mm|in|sigfig=1|abbr=on}} long in the centre of the labellum. Flowering occurs from September to October.[1][2][3]Taxonomy and namingCaladenia longicauda was first formally described by John Lindley in 1840 and the description was published in A Sketch of the Vegetation of the Swan River Colony.[4] In 2001 Stephen Hopper and Andrew Brown described eleven subspecies, including subspecies clivicola and the descriptions were published in Nuytsia.[5] The subspecies name (clivicola) is a derived from the Latin words clivus meaning “sloping side of a hill",[6]{{rp|211}} and cola meaning "dweller" or "inhabitant",[6]{{rp|217}} referring to the sloping hills of the Darling Scarp where this subspecies was discovered.[2]Distribution and habitatThe Darling Scarp white spider orchid occurs mainly on the Darling Scarp near Harvey but also near Dunsborough, in the Jarrah Forest and Swan Coastal Plain biogeographic regions where it grows in forest and shrubland near granite outcrops.[1][2][3][7] ConservationCaladenia longicauda subsp. clivicola is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.[7]References1. ^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=63}} {{Taxonbar|from=Q26205508}}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=86}} 3. ^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=97|edition=3rd}} 4. ^{{cite web|title=Caladenia longicauda|url= https://id.biodiversity.org.au/instance/apni/514089|publisher=APNI|accessdate=15 February 2017}} 5. ^1 {{cite web|title=Caladenia longicauda subsp. clivicola|url= https://id.biodiversity.org.au/instance/apni/574109|publisher=APNI|accessdate=15 February 2017}} 6. ^1 {{cite book|last1=Brown|first1=Roland Wilbur|title=The Composition of Scientific Words|date=1956|publisher=Smithsonian Institution Press|location=Washington, D.C.}} 7. ^1 {{FloraBase|name=Caladenia longicauda subsp. clivicola|id=13859}} 6 : Caladenia|Endemic orchids of Australia|Orchids of Western Australia|Plants described in 2001|Taxa named by Stephen Hopper|Taxa named by Andrew Phillip Brown |
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