| 词条 | Diuris gregaria |
| 释义 |
| name = Clumping golden moths | image = Diuris gregaria.jpg | image_caption = Diuris gregaria in the southern Grampians | regnum = Plantae | unranked_divisio = Angiosperms | unranked_classis = Monocots | ordo = Asparagales | familia = Orchidaceae | subfamilia = Orchidoideae | tribus = Diurideae | subtribus = Diuridinae | genus = Diuris | species = D. gregaria | binomial = Diuris gregaria | binomial_authority = D.L.Jones[1] }} Diuris gregaria, commonly known as clumping golden moths[2] is a species of orchid that is endemic to Victoria. It between three and seven leaves and one or two bright yellow flowers with a few dark striations and usually grows in dense tufts of up to thirty plants. It is a rare species mostly only found in grassland west of Melbourne. DescriptionDiuris gregaria is a tuberous, perennial herb which often grows in densely crowded tufts of up to thirty plants. Each has between three and seven narrow linear leaves {{convert|50-100|mm|in|sigfig=1|abbr=on}} long and {{convert|1-2|mm|in|sigfig=1|abbr=on}} wide in a loose tussock. One or two bright yellow flowers with a few short, dark striations, {{convert|12-20|mm|in|sigfig=1|abbr=on}} wide are borne on a flowering stem {{convert|100-200|mm|in|sigfig=1|abbr=on}} tall. The dorsal is egg-shaped and held close to horizontally, {{convert|7-12|mm|in|sigfig=1|abbr=on}} long and {{convert|4-8|mm|in|sigfig=1|abbr=on}} wide. The lateral sepals are green, lance-shaped with the narrower end towards the base, {{convert|14-18|mm|in|sigfig=1|abbr=on}} long, about {{convert|2|mm|in|sigfig=1|abbr=on}} wide, turned below horizontal and usually parallel to each other. The petals curve forwards, elliptic to egg-shaped, {{convert|8-12|mm|in|sigfig=1|abbr=on}} long and {{convert|4-6|mm|in|sigfig=2|abbr=on}} wide on a green stalk {{convert|3-4|mm|in|sigfig=1|abbr=on}} long. The labellum is {{convert|10-17|mm|in|sigfig=1|abbr=on}} long and has three lobes. The centre lobe is egg-shaped, {{convert|7-12|mm|in|sigfig=1|abbr=on}} long and {{convert|6-10|mm|in|sigfig=1|abbr=on}} wide and the side lobes are oblong to wedge-shaped, {{convert|2-3|mm|in|sigfig=1|abbr=on}} long and about {{convert|1|mm|in|sigfig=1|abbr=on}} wide with irregular edges. There are two dark yellow, pimply callus ridges near the mid-line of the labellum. Flowering occurs in September and October.[3][4]Taxonomy and namingDiuris gregaria was first formally described in 2006 by David Jones from a specimen collected near Derrinallum and the description was published in Australian Orchid Research.[5] The specific epithet (gregaria) is a Latin word meaning "pertaining to a flock or herd",[6] referring to the clumping habit of this species.[3]Distribution and habitatClumping golden moths grows in grassland on the basalt plains in western Victoria.[4] ConservationThis orchid is classed as "endangered" under the Victorian government Flora and Fauna Guarantee Act 1988. Its range has been reduced by farming and agriculture.[4] References1. ^{{WCSP | 346721 | Diuris gregaria}} {{Taxonbar|from=Q10267393}}2. ^{{cite web|title=Diuris gregaria D.L.Jones|url=https://bie.ala.org.au/species/http://id.biodiversity.org.au/node/apni/2902785|publisher=Atlas of Living Australia|accessdate=23 March 2018}} 3. ^1 {{cite journal|last1=Jones|first1=David L.|title=Miscellaneous new species of Australian Orchidaceae|journal=Australian Orchid Research|date=2006|volume=5|pages=79–80}} 4. ^1 2 {{cite web|last1=Jeanes|first1=Jeff|last2=Stajsic|first2=Val|title=Diuris gregaria|url=https://vicflora.rbg.vic.gov.au/flora/taxon/171f8950-bbe0-488e-9959-5c53d65b5055|publisher=Royal Botanic Gardens Victoria|accessdate=23 March 2018}} 5. ^{{cite web|title=Duiris gregaria|url= https://id.biodiversity.org.au/instance/apni/616355|publisher=APNI|accessdate=23 March 2018}} 6. ^{{cite book|last1=Brown|first1=Roland Wilbur|title=The Composition of Scientific Words|date=1956|publisher=Smithsonian Institution Press|location=Washington, D.C.|page =383}} 4 : Diuris|Endemic orchids of Australia|Orchids of Victoria (Australia)|Plants described in 2006 |
| 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。