| 词条 | Prasophyllum brevilabre |
| 释义 |
| name = Short-lip leek orchid | image = Prasophyllum brevilabre.jpg | image_caption = Prasophyllum brevilabre growing on Black Mountain in the A.C.T. | status_system = | status = | taxon = Prasophyllum brevilabre | authority= (Lindl.) Hook.f.[1] | display_parents = 3 }} Prasophyllum brevilabre, commonly known as the short-lip leek orchid, is a species of orchid endemic to south-eastern Australia. It has a single tubular, green leaf and up to thirty small, greenish-brown flowers with a white labellum. The labellum is sharply turned back on itself so that its tip almost reaches its base. DescriptionPrasophyllum brevilabre is a terrestrial, perennial, deciduous, herb with an underground tuber and a single tube-shaped leaf up to {{convert|350|mm|in|sigfig=1|abbr=on}} long with the free part {{convert|20-80|mm|in|sigfig=1|abbr=on}} long. Up to thirty flowers are well-spaced along a flowering spike {{convert|150-500|mm|in|sigfig=1|abbr=on}} tall. The flowers are greenish-brown and as with others in the genus, the flowers are inverted so that the labellum is above the column rather than below it. The dorsal sepal is egg-shaped to lance-shaped, reddish-brown and {{convert|7-8|mm|in|sigfig=2|abbr=on}} long. The lateral sepals are about {{convert|10|mm|in|sigfig=1|abbr=on}} long, sometimes joined together but often free from each other. The petals are linear to lance-shaped, {{convert|8-10|mm|in|sigfig=1|abbr=on}} long, sometimes wavy and sometimes sickle-shaped. The labellum is spoon-shaped, {{convert|8-10|mm|in|sigfig=1|abbr=on}} long and about {{convert|3|mm|in|sigfig=1|abbr=on}} wide. It is turned back on itself so that its tip almost touches its base, and its edges are wavy. Flowering occurs from September to January, most prolifically after fire the previous summer.[1][2][3]Taxonomy and namingThe short-lip leek orchid was first formally described in 1840 by John Lindley who gave it the name Prasophyllum lutescens var. brevilabre and published the description in The genera and species of orchidaceous plants.[4] In 1859 Joseph Dalton Hooker changed the name to Prasophyllum brevilabre.[5][7] The specific epithet (brevilabre) is derived from the Latin words brevis meaning "short"[6]{{rp|708}} and labrum meaning "lip".[6]{{rp|487}} Distribution and habitatPrasophyllum brevilabre occurs in south-eastern Queensland, the coastal New South Wales and sometimes as far inland as Mount Kaputar, in the higher rainfall areas of Victoria and is widespread in Tasmania. It grows in a variety of habitats from coastal heath to forest, sometimes in subalpine regions.[1][2][7]References1. ^1 {{cite web|last1=Bernhardt|first1=Peter|last2 = Rowe|first2 = Ross|title=Prasophyllum brevilabre|url=http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Prasophyllum~brevilabre|publisher=Royal Botanic Garden Sydney - plantnet|accessdate=15 October 2017}} 2. ^1 {{cite web|last1=Jeanes|first1=Jeff|title=Prasophyllum brevilabre|url=https://vicflora.rbg.vic.gov.au/flora/taxon/1658c738-8459-447d-a8f6-d44093c266b9|publisher=Royal Botanic Gardens Victoria - vicflora|accessdate=15 October 2017}} 3. ^{{cite book|last1=Mayfield|first1=Enid|title=Flora of the Otway plain & ranges.|date=2010|publisher=CSIRO Publishing|location=Collingwood, Victoria|isbn=9780643098046|page=136|edition=2nd}} 4. ^{{cite web|title=Prasophyllum lutescens var. brevilabre|url= https://id.biodiversity.org.au/instance/apni/534668|publisher=APNI|accessdate=15 October 2017}} 5. ^1 {{cite web|title=Prasophyllum brevilabre|url= https://id.biodiversity.org.au/instance/apni/507145|publisher=APNI|accessdate=15 October 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 {{cite journal|last1=Jones|first1=David L.|title=Contributions to Tasmanian Orchidology|journal=Australian Orchid Research|date=1998|volume=3|issue=6|page=102}} External links
7 : Prasophyllum|Flora of New South Wales|Flora of Queensland|Flora of Tasmania|Flora of Victoria (Australia)|Endemic orchids of Australia|Plants described in 1840 |
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