| 词条 | Thelymitra × macmillanii |
| 释义 |
| name = Red sun orchid | image = Thelymitra x macmillanii.jpg | image_caption = Thelymitra × macmillanii growing near Bendigo | regnum = Plantae | unranked_divisio = Angiosperms | unranked_classis = Monocots | ordo = Asparagales | familia = Orchidaceae | subfamilia = Orchidoideae | tribus = Diurideae | subtribus = Thelymitrinae | genus = Thelymitra | species = T. × macmillanii | binomial = Thelymitra × macmillanii | binomial_authority = F.Muell.[1] | synonyms_ref =[1] | synonyms =* Macdonaldia × macmillanii (F.Muell.) Szlach. }} Thelymitra × macmillanii, commonly called the red sun orchid[3] or crimson sun orchid[4] is a species of orchid that is endemic to south-eastern Australia. It has a single tapering, channelled leaf and up to five bright red, sometimes yellow flowers. It is a natural hybrid between T. antennifera and T. carnea or T. rubra. DescriptionThelymitra × macmillanii is a tuberous, perennial herb with a single channelled, tapering linear leaf {{convert|50-210|mm|in|sigfig=1|abbr=on}} long and {{convert|2-5|mm|in|sigfig=1|abbr=on}} wide. Up to six bright red, sometimes yellow flowers {{convert|20-40|mm|in|sigfig=1|abbr=on}} wide are arranged on a flowering stem {{convert|100-300|mm|in|sigfig=1|abbr=on}} tall. There are one or two bracts along the flowering stem. The sepals and petals are {{convert|12-20|mm|in|sigfig=1|abbr=on}} long. The column is the same colour as the petals, oval and {{convert|4-6|mm|in|sigfig=2|abbr=on}} long. The lobe on the top of the anther is very small and warty. The side lobes are variable but mostly {{convert|2-3|mm|in|sigfig=1|abbr=on}} long and rough or warty all over. Flowering occurs from August to September.[2][3]Taxonomy and namingThelymitra × macmillanii was first formally described in 1865 by Ferdinand von Mueller from a specimen collected near Mount Eliza and Mount Martha, and the description was published in Fragmenta phytographiae Australiae.[4][5] The specific epithet (x macmillanii) honours "T.McMillan" who collected the type specimen.[5]Distribution and habitatThe red sun orchid grows in grassland, woodland and forest where its parent species grow together. It is found in central and western Victoria and in the south-east of South Australia.[2][3] References1. ^1 {{WCSP | 203777 | Thelymitra x macmillanii }} 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 =257}} 3. ^1 2 {{cite web|last1=Jeanes|first1=Jeff| title=Thelymitra x macmillanii|url=https://vicflora.rbg.vic.gov.au/flora/taxon/c6743379-d9ba-48f8-9ba6-85a854c39a4e|publisher=Royal Botanic Gardens Victoria|accessdate=17 June 2018}} 4. ^{{cite web|title=Thelymitra x macmillanii|url= https://id.biodiversity.org.au/instance/apni/574950|publisher=APNI|accessdate=17 June 2018}} 5. ^1 {{cite book |last1=von Mueller |first1=Ferdinand |title=Fragmenta phytographiae Australiae (Volume 5) |date=1865 |location=Melbourne |page=93 |url=https://www.biodiversitylibrary.org/item/7222#page/101/mode/1up |accessdate=17 June 2018}} External links
6 : Thelymitra|Endemic orchids of Australia|Orchids of Victoria (Australia)|Orchids of South Australia|Plants described in 1865|Interspecific orchid hybrids |
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