| 词条 | Prasophyllum pyriforme |
| 释义 |
|name = Graceful leek orchid |taxon=Prasophyllum pyriforme |display_parents = 3 |authority= E.Coleman[1] | synonyms_ref= [1] | synonyms=Prasophyllum chasmogamum R.J.Bates & D.L.Jones }} Prasophyllum pyriforme, commonly known as the graceful leek orchid is a species of orchid species endemic to eastern Australia. It has a single tubular leaf and up to fifty greenish flowers with a pink or white labellum. As with others in the genus, the labellum is above the column rather than below it. DescriptionPrasophyllum pyriforme is a terrestrial, perennial, deciduous, herb with an underground tuber and a single smooth dark green, tube-shaped leaf {{convert|100-250|mm|in|sigfig=1|abbr=on}} long and {{convert|3-6|mm|in|sigfig=1|abbr=on}} in diameter near its reddish base. Between thirty and fifty greenish or mauve flowers are crowded on a flowering stem {{convert|100-150|mm|in|sigfig=1|abbr=on}} long. The ovary is {{convert|4-6|mm|in|sigfig=2|abbr=on}} long, the petals are {{convert|7-9|mm|in|sigfig=1|abbr=on}} long and the lateral sepals are {{convert|8-11|mm|in|sigfig=1|abbr=on}} long, erect, linear to lance-shaped and fused at their sides for most of their length. The labellum is {{convert|6-8|mm|in|sigfig=1|abbr=on}} long, curves upwards to almost touch the lateral sepals and is pink or white with wavy edges. The callus in the centre of the labellum is greenish, wrinkled and extends almost to the tip of the labellum. Flowering occurs in November and December.[1][2][3]Taxonomy and namingPrasophyllum pyriforme was first formally described in 1933 by Edith Coleman and the description was published in The Victorian Naturalist from a specimen collected near Doncaster.[4][5] The specific epithet (pyriforme) is derived from the Latin words pyrum meaning "pear"[6]{{rp|593}} and forme meaning "shape".[6]{{rp|28}} Distribution and habitatThe graceful leek orchid grows in woodland and open forest and flowers more prolifically after fire. It occurs in southern and eastern Victoria and on the south coast of New South Wales. References1. ^{{cite web|last1=Jeanes|first1=Jeff|title=Prasophyllum pyriforme|url=https://vicflora.rbg.vic.gov.au/flora/taxon/1370d822-9f0d-4c2e-a94e-4d96a1e0a7cb|publisher=Royal Botanic Gardens Melbourne - vicflora|accessdate=12 October 2017}} 2. ^{{cite web|title=Prasophyllum pyriforme|url=http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Prasophyllum~pyriforme|publisher=Royal Botanic Garden Sydney - plantnet|accessdate=12 October 2017}} 3. ^{{cite web|title=Prasophyllum pyriforme|url=http://fe.yarraranges.vic.gov.au/Residents/Trees_Vegetation/Yarra_Ranges_Plant_Directory/Yarra_Ranges_Local_Plant_Directory/Lower_Storey/Orchids/Prasophyllum_pyriforme|publisher=Yarra Ranges Shire Council|accessdate=12 October 2017}} 4. ^1 2 {{cite web|title=Prasophyllum pyriforme|url=https://id.biodiversity.org.au/instance/apni/535925|publisher=APNI|accessdate=12 October 2017}} 5. ^{{cite journal|last1=Coleman|first1=Edith|title=A new Victorian Prasophyllum|journal=The Victorian Naturalist|date=1932|volume=49|page=195|url=https://www.biodiversitylibrary.org/item/125545#page/211/mode/1up|accessdate=12 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.}} External links
5 : Prasophyllum|Flora of New South Wales|Flora of Victoria (Australia)|Endemic orchids of Australia|Plants described in 1933 |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。