| 词条 | Thelymitra imbricata |
| 释义 |
| name = Broad sun orchid | image = | image_caption = | regnum = Plantae | unranked_divisio = Angiosperms | unranked_classis = Monocots | ordo = Asparagales | familia = Orchidaceae | subfamilia = Orchidoideae | tribus = Diurideae | subtribus = Thelymitrinae | genus = Thelymitra | species = T. imbricata | binomial = Thelymitra imbricata | binomial_authority = D.L.Jones[1] | synonyms_ref = | synonyms = * Thelymitra nuda var. grandiflora Lindl. }} Thelymitra imbricata, commonly called the broad sun orchid,[2] is a species of orchid that is endemic to Tasmania. It has a single erect, channelled leaf and up to fifteen or more pale to dark or purplish blue, relatively large flowers. DescriptionThelymitra imbricata is a tuberous, perennial herb with a single erect, fleshy, channelled, light green, linear to lance-shaped leaf {{convert|200-300|mm|in|sigfig=1|abbr=on}} long and {{convert|20-30|mm|in|sigfig=1|abbr=on}} wide with a purplish base. Between three and fifteen or more pale to dark or purplish blue flowers {{convert|25-35|mm|in|sigfig=2|abbr=on}} wide are arranged on a flowering stem {{convert|150-600|mm|in|sigfig=1|abbr=on}} tall. The sepals and petals are {{convert|12-20|mm|in|sigfig=1|abbr=on}} long and {{convert|5-10|mm|in|sigfig=1|abbr=on}} wide. The column is white, bluish or pinkish, {{convert|5-7|mm|in|sigfig=1|abbr=on}} long and {{convert|2.5-4|mm|in|sigfig=1|abbr=on}} wide. The lobe on the top of the anther is about {{convert|3|mm|in|sigfig=1|abbr=on}} long and {{convert|2|mm|in|sigfig=1|abbr=on}} wide, brown or orange brown with a narrow blue band, gently curved with an inflated hood and a V-shaped notch. The side lobes are finger-like and have dense, toothbrush-like tufts of white hairs. Flowering occurs from late October to early December. The flowers are long-lasting, insect pollinated and open on warm sunny days.[2][3]Taxonomy and namingThelymitra imbricata was first formally described in 1998 by David Jones and the description was published in Australian Orchid Research. The name replaced the synonym Thelymitra nuda var. grandiflora Lindl..[4] The specific epithet (imbricata) is a Latin word meaning "overlapping like roofing-tiles and shingles".[5]Distribution and habitatThe broad sun orchid usually grows in a range of habitats including open forest, scubland, grassland and heath in the Tasmanian midlands.[2][6] References1. ^{{WCSP | 203760 | Thelymitra imbricata }} 2. ^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 =230}} 3. ^{{cite journal|last1=Jeanes|first1=Jeffrey A.|title=An overview of the Thelymitra nuda (Orchidaceae) complex in Australia including the description of six new species|journal=Muelleria|date=2013|volume=31|pages= 16–17|url=https://www.rbg.vic.gov.au/documents/MuelleriaVol-31-p3-Jeanes-PDF-Accessibility.pdf|accessdate=12 May 2018}} 4. ^{{cite web|title=Thelymitra imbricata|url= https://id.biodiversity.org.au/instance/apni/574919 |publisher=APNI|accessdate=12 May 2018}} 5. ^{{cite book|last1=Brown|first1=Roland Wilbur|title=The Composition of Scientific Words|date=1956|publisher=Smithsonian Institution Press|location=Washington, D.C.|page=434}} 6. ^{{cite journal|last1=Jones|first1=David L.|title=Contributions to Tasmanian Orchidology|journal=Australian Orchid Research|date=1998|volume=3|pages=186–187}} External links
4 : Thelymitra|Endemic orchids of Australia|Orchids of Tasmania|Plants described in 1998 |
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